Thinking of getting out of onboard sound (realtek) and was looking at creative since I only knew sound blaster for sound cards. Is the X-Fi Xtreme Gamer sound card (not the pro or titanium) worth it? I'm running Vista 32 bit. Have a Conroe E6550 core2duo, 2.3 ghz, 1333 fsb; 2gb ram, vid card is nvidia 8300gs (next on the upgrade trail along with a power supply). Any other cards I ought to consider? Budget of under $100.