The reason I'd cut out the rectangles in the vise support was that I'd intended to put a benchdog hole through each, and I wanted the thickness of the top to be the same for all of the benchdog holes. Where I messed up was in not cutting out the ends, between the bolt tabs. I'd intended to put a benchdog hole through there, as well, but I'd forgotten to cut out the segments prior to glue0up.

With the shelf secure, get a couple of friends to come help, and stand the bench on its feet. I said earlier moving the top by yourself is dangerous. Trying to lift the entire bench is foolhardy. Of course, I already said I'm stubborn, so I did it myself by rigging a simple block-and-tackle using lightweight pulleys I got at the hardware store. (Not the lightest-weight pulleys, those are meant for flag poles and have a design load of something like 40 pounds. These had a design load of 420 pounds.)
The bench I will be describing differs from both of these in a couple of areas, the most significant of which is the top. Allen's top was made from three layers of 3/4" medium density fiberboard (MDF), topped and edged with 1/4" hardboard. Christiana's top was just two layers of 3/4" MDF. My top is two layers of 3/4" MDF edged with 1/2" oak and topped by a 1-1/2" thick edge-glued oak Ikea countertop. My top is more expensive in both time and money than either Christiana's or Allen's. If you're looking to build something fast and cheap, I'd recommend Allen's approach over Christiana's. The hardboard significantly increases the durability of the top.
The beauty of this project lies in the simplicity. All you need are 3 pieces of wood of your choice (though we must admit natural hardwoods will look incredible), sanding block, clamps, wood glue and finishing product. The hardest step of the whole tutorial is measuring – as always, measure 9 times, cut once! You wouldn’t want to finish your project and then realize it doesn’t have enough space to fit your DVD player, would you?
Yea I had a friend who went the HD route and in after putting new braces up for the roof and an extra layer of plywood on the floor he gave up the fight and tore it down. We ended up building twice the shed that was 100 times more sturdy for less than he had invested in the first one. I would go any route that is the opposite way of HD or Lowes. Learn from this guy.
I made a low table out of a couple of step-stools, my hollow-core door, and one of the MDF panels that would eventually form part of my top. I was concerned that any oil that dripped on the door might interfere with its glue adhesion, when I finally get around to the project for which I'd purchased it. The top side of the top sheet of MDF, though, I planned to oil, anyway. (Ditto for the bottom side of the bottom sheet.
2 - use a plunge router with a bottom bearing cuter bit such as this from rockler: .... I thought to use the short one as I plunge it directly downward in the centre of the hole until the bearing reaches within the tabletop hole. I suppose one could use a long one, but the stubbiness seemed more practical (the big bearing ensured accuracy?)
The hacksaw will often damage the last thread when it cuts. Running a nut off the end will fix this. You'll have to run the nut all the way down from the other end. This doesn't take long, if you chuck up the rod in your drill and let it do the work. Hold the rod vertically, with the drill pointing down, and just hold on to the nut enough to keep it from spinning.
The description below is an outline for how the course will proceed.  We intentionally maintain a level of flexibility in our curriculum to adapt and respond to the needs of each group of students depending on aptitude.  Each project has a basic standard of completion as well as design opportunities for elaboration and exploration of more advanced techniques.   Our instructors will guide you through projects as is best suited for your ability level.   
You are absolutely right on your advise. When I was agonizing over how to build a workbench my good friend turned me on to your book on workbenches. I was planning on having an overhang until I read your advise about building a workbench and not a table. So the entire front and rear surfaces; top, legs and bottom shelf are all in the same plane to clamp my work to. The addition of a sliding dead man was also something that I would have never thought of on my own. Thanks again for your advise.

I agree that even at 12x12, things'll be "cozy" inside. That's OK. Keep in mind that this will be a general purpose hobby shed, not just a wood working shed. Even 12x8 would be plenty big enough for building 1 meter wingspan bungee launched RC gliders. And for the electronics projects I do, I only need enough workbench space to do some soldering with a 3rd hand (for electric guitar pedals). If I need more room than the shed offers for wood working projects, I'll just roll the table saw down a ramp and do my cutting outside in the sun.
In general, students in the certificate and degree programs learn how to understand and create their own shop drawings and design custom cabinetry. In the process, they also find out how to use the same tools and machines employed in the woodworking business and assemble cabinets according to industry standards. Additional program topics include the use of contemporary hardware in design.
At the age of 9, Mark’s interest in woodworking began, which led him to begin an apprenticeship with Homestead Heritage Furniture at the age of 17. In his own shop he has built many pieces of furniture from small dovetail boxes to large 10′ round conference tables. Most of his work has been for clients who have ordered custom pieces for their homes and offices. Mark has been building custom furniture for the last 20 years and is now the manager of the Heritage Furniture business. Mark enjoys making hand tools and jigs that can simplify the building process. He has taught children how to shape simple utensils like wooden spoons and cutting boards as well as other larger projects. “Seeing the young grow to maturity in their craft is what I appreciate.”

After I left the magazine for a new job, I did all of my woodworking in my small two-car garage, but it was a struggle. Power, lighting, and temperature control were limited. And because I shared space with our cars I was always moving machines around, often while in the middle of a project. On top of that, my tool and machine collection had long since eclipsed the space. For all these reasons, fixing up the garage wasn’t an option. My finished basement is a family room, so it was out, too. An addition to the home or a stand-alone building would have been too expensive. I had to find a better path to a shop.