I'm building a new system and need some help. Speakers will probably be RTi150's, CS245i, f/x 300i, & the PSW202. I'm looking for a new receiver and need some advice. I would like to move to an amp/pre-amp/tuner setup, but really don't know a great deal about putting those components together. My other option looks to be a normal A/V receiver along with an additional amp for bi-amping. If I were to with the amp/preamp setup, what brands would you all recommend and how do you put them together properly? If I went with the A/V receiver setup, what brands would you recommend? I have a budget of about $600-$800 to work with, so can I pull this off or what? Any help would be greatly appreciated.