I'm buying a 2.1 bookshelves/sub setup for my office bedroom (12.5' x 11'). Just started listening to speakers and am leaning towards Definitive Technology 350 for the bookshelves. I will be mostly listening to CDs and FM radio with occasion HDTV through my HTPC. I was thinking of buying the Denon 1910/790 to replace the receiver in my living room and moving my old JVC VBK884 5.1 DD 5x100watt receiver here, but thought I could save some $ instead by buying a 5.1 receiver or even higher power 2 channel receiver if they make such a thing these days. Seems with so many (7) channels these days, the A/V receivers are lower in power to each channel. The 5.1 receivers seem to have even lower power. Are any of the A/V receivers set up so that they can bi-amplify the main front speakers in a 2.1 setup? Seems the extra surround amps in 7.1 are wasted with 5.1 setup and same with 5.1 amps in a 2.1 setup. Receiver recommendations welcomed.