These are my first set of decent headphones and im blown away. Iv'e read though that im holding them back w/o a decent sound card. I have never bought a sound card before and have no clue whats what.
I use the headphones for gaming and music. From what i read these are what people seem to recommend :
AuzenTech Forte
HT Omega Striker
Asus Xonar
I also read somewhere that the xfi cards are better for gaming but sound quality deserves a lot to be desired.