My wife has given me the go ahead in the next month to upgrade one thing in my system (up to $700). My system currently consists of: Klipsh Synergy SB-1's all around with a KSC-1 Center, a Klipsh KSW-12 sub, and a Sony DB-830 receiver. It would be nice to upgrade the receiver and get the latest formats (PL2) for games and such, as well as to have inputs for all my stuff, but at the same time I know my sub doesn't quite hit the bottom limits. I'm also aware that perhaps larger speakers would improve my system. I'm thinking perhaps Klipsch Reference Series (new or current at discount) or Axiom M22's with perhaps a new center wedged in there. I don't use this system for music at all, just TV, games, and HT. I built this original system on a budget, and want to start working my way upwards (of course). Whatever I get, I want it to last a while. What do you think? Other than the speakers I'm considering above, I'm considering a HK-525 receiver and an SVS 25-31 or 20-39 PCi sub. Thanks, Ian C.