There is a show called All in the Timing by David Ives.  http://www.dramatists.com/cgi-bin/db/single.asp?key=30 It is six one-act comedies.  Simple settings.  Since you have little space, I would suggest using various size boxes to create levels and suggest areas.  A large box with two small boxes for seating is a table, rearrange the boxes by placing three boxes together you have a bench or sofa.

Here are a couple one acts which may or may not work for your setup. We went overboard and changed the set (we made the set a little smaller to put the props backstage). I would imagine that just by moving pieces around you could accomplish the same effect.

Graceland is funny and it is about two women getting into Graceland first on the first day it open to the public.....funny minium set

2 one acts that worked well together for a group I know were "Businessman's Lunch" by Michael David Quinn and, "The Cowboy, The Indian, and the Fervent Feminist", by Murray Shisgal. Both use table and chairs and a few props that can be easily changed between shows. 5 cast members in the first and 3 in the second.

Originally posted by donzolidis The "Good Doctor" by Neil Simon also has a bunch of funny one-acts in it that don't need hardly anything by way of a set.

I was just going to say "Good Doctor"! A start-up group did it here in what was basically a corner of a cafeteria with nothing but two small tables, three ladderback chairs, and a floor mirror (which was lavish). They did have a curtain rigged behind them for their exits, but they could easily have exited to one side between "acts". Besides, if you have any budget at all, it can be fairly simple to build a curtain/backdrop setup. All you need really is a forked post on either side and a crossbeam. Just make sure the bottom of the post is wide enough to be stable and the crossbeam can be removed and it's easily stored and good for a variety of things.
sorry for the long post, I just came off an opening night, I'm kinda jazzed.