If you're going to be signing up for Blockbuster's DVD at home service, do yourself a big favor, and get yourself a piece of the ad-referral pie. I was going to sign up anyway, and instead of going straight there, I went through a site that is giving away free ipods. It's a completely legitimate offer, and I saw good reviews of it on a reputable news site. All you have to do is join, complete an online offer, and refer friends to do the same. That's it!
Here is my referral link. To help me get my iPod (and start you off toward getting yours!!), click this http://www.freeiPods.com/?r=13588550

As long as they're giving away referral money, you want to make sure that you get your piece of what's coming to you.