I'm in the process of upgrading my old yamaha amp. I've narrowed the choice down to either a Denon 3803 or a Pioneer ax5i. I've recently bought a denon dvd2900 & sony plasma ke32ts2. The pioneer amp is more expensive & does seem to offer a few more options, but is it worth it? Bi-amping for instance? I know the denon is capable of video up switching but I'm already running RGB connections into the plasma from my game consoles. My speaker set-up is Kef Ref 3(F) Kef 100(c) Kef Ref 1(R) + Xbox, Ps2, & GC. Any help/advice or alternative suggestions would be appreciated, as i haven't auditioned either amp yet.