I'll show you where i got mine from, it comes OEM style, but looks exactly the same as the microsoft one as far as i can tell, but at a much cheaper price. Trust me, you will not regret this.
Even my computer / graphics illiterate was in awe, he said "That is throw!"
Here the link to the one i got. http://cgi.ebay.com/ws/eBayISAPI.dll...9796&rd=1&rd=1
and here are several of the same things he is selling http://video-games.search.ebay.com/_...ZsmartQ5fbuy88
I'm pretty sure we can link to eBay in here, it's just in the for sale forum right?
Oh yeah and like noshibby said, sending your audio through your nice PC speakers is also way better. Hearing the 360 on my friends x-230 2.1 logitech speakers was awesome compared to our TVs. And i have the same speakers!