PC suggestions for my new gear

I have a new sony DVP-555ES and a Musical Fidelity Tri-Vista 21 DAC. I am looking for suggestions for PC's to try on these units. My only non-stock PC is a ZU Cables BOK that I am using on my Genesis Digital Lens. I would like to try 2 other brands so I can get a feel for how each contributes to sound quality on different pieces of gear. I am looking at a budget of $70-$250 max per cable.
I also have the DVP-555ES and could not believe the difference when I installed a Virtual Dynamics Power 3 cord
over a Stealth HAC cord. Maybe one can pay more, but this is enough for me!
I chose Virtual Image Sledgehammer PC over the Ensemble Mega's. I then went from the V.I. Sledgehammers to V.I. Pile Drivers for my CDP & pre, I still use a Sledgehammer on my amp. If you are interested, you can e-mail Virtual Image at [email protected], they also have a 30-day money back policy. They also have some KILLER interconnects!!