Selling Books and Games?

Before moving this spring, I'm looking to get rid of a large number of my possessions that I feel are just kind of weighing me down. Should I go through the trouble of putting up a bunch of eBay auctions, one for each book, or is there a better way to get rid of my stuff? I don't really want to donate anything if I can get a few bucks for it. Suggestions? I've got tons of video games that I need to shed as well.