www.freeipods.com is what I did, they have a ton of other sites as well. I'm currently working on a free PS3 for when it comes out. My friend did the Xbox360 one and he got his in the mail a few days after launch. If anyone is interested in the PS3 offer help me out if your gonna do it. This is my referral link.
http://ps3s.freepay.com/?r=25490705
Just go there, sign up for an offer, wait a few days for the offer to complete, and then cancel before the free trial runs out. VERY simple. It's legit, I can post pic's of the iPod and the tracking papers from the site.