I'm running a g5 with iTunes, using the digital optical out via an audioquest OptiLink 1 (12m) to an external cal-audio sigma DAC...
LOVE it... and i've got almost 2000 songs (all AIFF / uncomressed, ripped from my CDs) on a 160gb drive. g5 is AMAZINGLY quiet (don't even know it's on except the little white light) and apple's iTunes works w/ a cheap $25 remote-IR unit (pre-configured and all) so I can control it all from my Rotel (preamp) remote which is nice (aka don't have to touch the computer). To top it off, a sub-$20 adaptor let me run video out of the mac to my TV so i can even scroll thru songs etc - it's like having an AudioRequest at a 10th of the price (for that capacity). Plus, i can easily convert to m4a for my iPod :D
LOVE it... and i've got almost 2000 songs (all AIFF / uncomressed, ripped from my CDs) on a 160gb drive. g5 is AMAZINGLY quiet (don't even know it's on except the little white light) and apple's iTunes works w/ a cheap $25 remote-IR unit (pre-configured and all) so I can control it all from my Rotel (preamp) remote which is nice (aka don't have to touch the computer). To top it off, a sub-$20 adaptor let me run video out of the mac to my TV so i can even scroll thru songs etc - it's like having an AudioRequest at a 10th of the price (for that capacity). Plus, i can easily convert to m4a for my iPod :D