Or you could just get one of these and not need to buy a receiver or a stand for your speakers: ZVOX Audio - Single-cabinet, wireless surround sound home theater systems
Mac Mini (as server) -> Squeezebox Touch, AE express->Cambridge Dacmagic Plus -> Outlaw RR2150 Stereo Receiver->PSB Image T^6 (dedicated 2 channel system)
Mac Mini -> NAD T747 -> PSB Imagine B, Samsung UN46EH6000, Panasonic dmp-bdt220 (home theater family room)
Macbook-> audio gd fun "b" dac/headphone amp -> audioengine N-22 amplifier -> audioengine P-4 speakers/Energy ESW-M8 sub/Beyerdynamic DT 880 (home office)