I find a number of used games pretty scratched so I take advantage of what Scriber recommended at Blockbuster, your local video store, etc. I've been told, though, that if I'm handy at all I could build my own (like the video store's, not like the mini ones you buy at Best Buy) for about $60. I've been kicking around the idea, but I'm sure you could find plenty of people online who have detailed what they built. I suppose if you clean enough games, it makes sense to save money using your own!