Best Netflix-Like Videogame Rental Service?

Duncan the Wuss asks: "So, almost everyone I know loves the DVD-rental-by-mail service Netflix. But what about the videogame rental market? I normally beat a game in about a week, and that can get expensive. I've checked out sites like GameFly and NumbThumb, and they seem reasonable. Geek.com even had a post about a site called TriggerFingers, but I can't seem to get anything to work on it. What I really need to know is, what's a high-quality site of this type that's worth renting from? Netflix is reputable and responds to customer complaints in a timely manner, but are there any video game rental sites with the same level of service? I mean, I don't want to give out my credit card numbers to just anyone."