Im getting an advent 27in flat hd tv and HDTV cable from most likely WOW. I have read up on home theater systems and i see ones with a 1000 watts for like $200 and i was wondering if i could get something like that? What requirements do i need to get HDTV sound out of a home theater system? Whats the best home theater system for HDTV for around 150-250 dollars?