When we first started the Makerspace, before we had even rented a building, we talked about having members build rolling carts that would serve as portable bench space with personal storage underneath, and which could be rolled out of the way when they weren’t being used. We ended up using pallet racks for storage, and a random collection of tables and benches for work space. But I always liked the cart idea.
You don’t want the cart rolling around while you’re working, and I didn’t want separate toe brakes on each wheel. After looking at several possibilities, I ran across this page, with a nice solution to a similar problem: http://www.woodgears.ca/mobile_base/table_saw.html
Here’s what I came up with:
More info here: http://wiki.milwaukeemakerspace.org/projects/cart