I'm going for a Paradigm Reference setup, with an SVS PC+ 25-31 sub. What receiver would go well with this setup? I looked at Marantz, which seems to be a popular one around here, but most are way above my budget. I'd like Dolby Pro Logic II, and at least under $400. Is this reasonable? I'm clueless as far as receivers go. Also, since the sub is powered, do I need an amp? Or would the receiver not be enough for the Paradigms (Two 40's, two 20's)? I'm clueless as far as amps as well.. bleh. I'm just pretty dumb, ha. Any help is very much appreciated.