Sound system?

[PspKicks316]

Can anyone suggest me a place to get good speakers/sound systems?
I want a good sound system for my room, like 5.1ch or 7.1ch.

I picked out a receiver from newegg that's roughly $400 that I like. Now, I just need speakers and a subwoofer...

Or, if anyone knows a great set, is there a wireless and wall-mountable sound system I'd be able to get? I'm not sure routing wires through my room is a good idea anymore.