I have the Pentax Optio S5i, and it is an incredible camera for the price. Smaller than a pack of cigarrettes, 10megapixels, a 3" viewing screen, macro, super-macro, portrait, landscape, flower, and low-light modes, as well as a tripod mount and a movie mode...with sound.
I paid $300 and change about 3 years ago for it, so you could probably find one for less than $200, if you look around. I HIGHLY recommend anything in the Pentax Optio line...