This is what I have planned for my build area. It has plenty of storage and is basically a big torsion box of sorts. It may be a bit overboard, but hey, what else is new.
[link=http://www.lowes.com/lowes/lkn?action=howTo&p=Build/rollingWorktable.html]Lowes rolling work table[/link]

I plan on using a magnetic building board, but you could fit a piece of sheetrock in there just as easily