For more information on test patterns, look here.
My new home theater setup now consists of:
Philips 42" PFL7422D/37 HDTV (1080p)
Sony STR-DG820 Receiver
Boston Acoustic Horizon MCS 100 5.1 Surround
I bought the Philips over a year ago at Sam's Club for $1,100 and picked up the receiver for a mere $190 on Amazon a couple of weeks ago. That was a 65% savings for a pre-Black Friday sale. The speaker set was an early Christmas gift, but it was bought from Amazon for $200 as a gold box deal of the day.
The sound is amazing and the PS3 pumps out full TrueHD/DTS-HD Master Audio sound with my Blu-Ray movies. So if you ever hear you can't get a nice sound system for around $400, just remember it's all about shopping smart.