Christopher Durang's 'denity Crisis ( if I recall correctly, 3 women, 3 men but you need some pretty strong actors)
"Clue, The Musical"- Not a great script, but fabulous songs and only needs about 7 people and no choregraphy is necessary if you aren't able (but you need an actor with an incredible memory and great talent to play Mr. Boddy, and a piano player who is willing to actually have lines)
Blithe Spirit- 2 men, 5 women, incredibly fun show to do (and if using grey for the ghosts doesn't work, try using glitter/shimmer. We did and it was fabulous).
Two By Two- 4 men, 4 women. Some potential set challenges, but all-in-all a fun show. Good music (if you're in a religiously conservative area, might not be the best idea, though. We got some hate mail when I did this in college).
"The World of Carl Sandburg" (I think that's the title)- Flexible gender distribution, not a "musical" but need a couple of singers and at leat one who plays guitar. Retrospctive of the poet's work. Good challenges for actors, a bit weird for audiences, but still fun to do.
"Talk to Me Like the Rain..."- Tennessee Williams. A "10-minute one-act" in the "27 Wagonloads of Cotton" compilation. 1 man, 1 woman. Beautifully written And this is from someone who usually hates TN Williams), but can be hard to act with the wrong partner. The woman has a seriously long speech to memorize at the end of the show.
Those are my first thoughts. I'm sure I can think of others, if given the time.
Carpe Noctem, y'all ;-P
"We are all misfits, I guess, in the theatre. Otherwise we wouldn't be here." ~Michael Kandel, "Ogre"
