Thanks for the replys. I found these and I might take a look at them. I'm not the greatest carpenter and it might be a good alternative. http://www.2x4basics.com/WorkBench-Legs.asp
That's what I used for a bench at my new place. I made the top 6 x 4 feet, and used another set of 2x4basics to make two shelves on top at the back.
Super sturdy, and lots of room. The good thing about the 2x4 is you can tailor the size to suit the space you have.
The Home Depot is where I got them from.