What PC for PPP?

I am looking for a PC for my Power Plant Premier. I am running a Krell 707, Meridian G08, Denon 5910, Panny BD55(will up grade later), Outlaw amp(surrounds duty) and my Mits Diamond display off of the PPP. The main's Krell amps directly to there own dedicated line.

I am looking in the $600-$700 dollar range and not apposed to used.

Thinking Shunyata Research's Python Helix Alpha or if the price is right go to Anaconda. I was also thinking LessLoss but I read somewhere here that it did not go well with the PPP.

Suggestions? ...... Thanks,