My Current Setup
TV - Dell 4201c PDP
Receiver - Onkyo
Speakers - Onkyo
DVD - Old Sony player
Game - Xbox 360
HTPC - AMD 64 3500+
I never use the DVD player anymore as I use the HTPC instead. It also streams music, plays video files, and allows me to watch full screened live MotoGP races.
About the speakes, it's a HTiB that got good reviews. Since I'm currently stuck in an apartment and the speakers I want are just recently out of development I went the cheapest route. They work for the setting so I'm quite happy.
The plan (once I move into my house) is to flush mount the speakers and TV into a false wall so that nothing sticks out. For movies I plan to get a projector and have the screen come down in front of the TV. But that's all into the future.