I have been wanting to build a workbench but just hadn't decided on a plan. I stumbled across one here and decided to go for it. It was easy to build, easy to follow the plans. I had fun building it and I'm super happy with out well it came out. This is my first big project and it's only my 3rd thing I've made.
The only deviation from the plan that I did was that I used 3/4" plywood for both shelves instead of just one. And I only did this so that I wouldn't have to buy a second piece of plywood. And I used 3" screws on the whole thing.
Also... I cut 3" off the height so that I could add wheels and it be the same height.
$18 - 2"x4"s
$ 7 - screws
$24 - Plywood
So about $49
The wheels... well... if you go to Lowes... I spent $30 including the bolts. Then I went to Harbor Freight and got some different ones for under $20. So I'd shop around on that. Or... you don't need them if you don't want them.