desk or worktable (South Boulder)

I need a desk or plain work table for a home office/craft area. Hopefully 4-5' wide, at least 2' front to back, normal desk height (apx 28-30" high). It needs to either come apart, have folding legs, or otherwise be able to fit down a flight of stairs into the basement. I can come pick it up; have access to an Xterra and a helper. Thanks!