NinjaTerdNah, I'm just using a Sound Blaster ZxR (since last year, before that I'm using motherboard sound card). Headphones that I used before (and still am) are Logitech h800, G230, Sennheiser PC37X, GSP 350 and Sony MDR-1000X.
KennyptI'm no audiophile, but one of the things that I can tell you is that the sound of the bass drum feels much clearer, as if the drum is being hit right in front of me :D