Saw your post in the other thread. For games there are a good number of options now. All the "age" sites (nintendo age is the biggest I think), gametz, amazon (of course, but fees and now it's much harder to sell dvds there as an independent smaller seller), and then all kinds of smaller forums. Some are more specific but if you have games to sell you can get them sold off ebay at decent rates. I've found generally at worst you can get 80% of Ebay sold prices easily/quickly for good stuff which isn't that much different as a seller and is nice for the buyer.
As someone who sells a fair bit on Ebay (not as much as you did, because I try to avoid it when possible) I am curious. How many bad transactions? How many cases were opened? What was the full story behind it?