Well, I'm looking for a new sound card for use with my Altec Lansing MX5021 (2.1), I mostly listen to music(90%), and I've heared that Creative sound card are better for games and movies, and that there are better sound cards for music. Supporting surround is not a must, but certainly is a nice...

I mostly listen to rock, alternative and metal, and some rap.. so, for about 200$, which one would be the best? Grado SR225, Audio Technica ATH-A900 or Sennheiser HD595(50 ohm)? I need it to be easily driven out of my 4th gen iPod, and i'll probably get an amp soon. I can get the A900...