The new motherboards having intel 925 and 915 chipsets come with onboard 7.1 channel surround sound support. I bought a Creative Inspire 5200, 5.1 speakers, I want a sound card for that. Is the onboard soundcard equal in performance and effects compared to a creative soundblaster live 5.1 ? Shoud I buy that extra? Also, since the onboard souncard is 7.1, can I buy a pair of speakers also and attach them along with the creative speakers and make a 7.1 system? Does it work out, pls tell me.