I would like the Creative X-FI Fatal1ty Pro Gamer Sound Card.
I have an extremely old computer (upwards of 6-7 years old today), and while it's audio quality is good, I actually would like to up it a bit, and when I get a new computer in the coming year or so, I'd like a cheap upgrade from the onboard audio. I currently use a Turtle Beach Santa Cruz dedicated card, use headphones, and not only game as much as possible with this computer, but I listen to streamed music, chat with friends on Vent, and watch on occasional video on here whenever my computer decides it will let me.
My PC is the Dell Dimension 4300, in case you people wanna laugh at my crappy computer:
http://support.dell.com/support/edocs/SYSTEMS/dim4300/specs.htm#1101572 http://images03.olx.com/ui/1/74/05/10006905_1.jpg
I also use this headset:
http://www.microcenter.com/single_product_results.phtml?product_id=0207879 . Kinda cheap, but I love it, personally. Really comfortable, good output, and the microphone seems to give out decent voice quality.
I've managed to get XP sp3 running on this thing too, and it does what I want it to do, for the most part. Granted, I wish I could play Half-Life 2 and not just stuck with the first game which I have beaten several times, but ah well.
Cheers~