http://www.amazon.com/Creative-Blast...3030556&sr=8-2
That's the one I got. It's used. Got it a few months ago, but I can't get it to work with Linux Mint and the Sandy Bridge outputs are sufficient for me. Definitely did see a difference when I took it out though, but whatever. I have the original box and everything for it as well.
Asking $80 and $5 extra if you want me to ship it to you. I can get pictures of it if you want as well, but really won't show you much.