I'm trying to buy a surround sound card, but the M-Audio Revolution i was looking at is PCI-X, so i dont think it'l work which is a shame... Any other suggestions of a good PCI Express 5.1 card? I have a set of Creative Inspire 6.1 speakers. They are ok, but need somthing to decode the sound for them, hense my need for a surround sound card. Might i be better getting a external digital decoder to connect to the optical output? Any help or adive would be great! Thanx!