I'm not sure what the best deal is for sub-200, but I would advise you to steer away from the Koss all-in-one home theater systems -- my gf and her brother each had one that their parents gave as xmas presents and, while the sound is decent, the dvd player is frustrating. It will freeze up midway through movies regularly. But the worst part, by far, is that it's almost impossible to find an universal remote that has a code for it.
My home theater system is an Onkyo 5.1 that my gf got me for xmas that runs ~300 and is very nice. My only complaint is that it doesn't do component video switching, but otherwise it's solid and sounds great.