Or you could donate them. Granted you may miss out on a $1 profit, but hey, at least your are getting rid of them. And if you want to be tacky about it, you could total the cost of the games brand new, get a donation slip for it and write it off on your taxes as a charitable donation.

In the past, I have bought and sold used console games on eBay and half.com, and in my experience they are excellent selling sites as they utilize PayPal and have buyer protection. However, it can be tough to sell a used computer game, especially one that has been out as long as Sims 2 has. There are literally hundreds of new copies of the game that are dirt cheap, and when it comes to video games, new trumps used, unless you have something rare. Selling the account is up to you however.