I'm considering getting a surround sound system, but it's the 1 area of home theater equipment I'm the most unfamiliar with.

I'm looking for a decent surround sound system for a few hundred dollars for my bedroom. The room 13x15 feet, and the current theater set up is a 32" Samsung LNT-3242HX, with my PS3 hooked up with hdmi, and my 360 hooked up vga. I'd also prefer a system that is wireless if it's possible. As I don't want to pay for a professional installation, and don't want wires running all over my room.

Does anyone have any suggestions on components, or home theater in a box with decent audio that would meet my needs?