If you can swing $550 + shipping, the
MAMERoom Designs kits are supposed to be excellent and snap together like most assembly-required furniture. It's probably the cheapest and easiest tool-less way to go.
Wow. Snap together. That's awesome. I may end up getting one of those - lazy-ass that I am. Probably end up using an X-Arcade controller, too. (much cheaper than the controllers on that site - you can get a two-player model for under $200.) BTW - the X-Arcade site *sucks* None of the links work for me unless I turn off Javascript. That's garbage.
Anyway, it's great to know that such an option exists. I would still like to design my own, (and I'm sure I'd save money that way.) But we'll see what happens. Thanks for the link!