Welcome to the Steam Trade thread! For best results, please add the URL of your steam profile, such as http://steamcommunity.com/id/icedwarrior/ to your post.
Since there's been some confusion about what can and cannot be traded, here's some frequently asked questions:
Q: What items can be traded?
A: Currently, Steam gifts/games, Team Fortress 2 items, Spiral Knights items, and Portal 2 items can all be traded.
Q: What do you mean by trading Steam Gifts?
A: Any game you’ve purchased from the store as a gift, or received as an Extra Copy, can be traded to other users. They can be used to trade for other Gifts, or for items in games supporting Steam Trading. We’ve added a new checkout option to the Store when purchasing a gift so you can save it for trading or sending later, to support users who want to save games for trade fodder.
Q: Why aren't some of my gifts tradable?
A: Only gifts that are purchased on trusted accounts can be traded immediately; otherwise there is a 30-day cool down before the gift can be traded. Any account that has made any valid purchase from the Steam Store more than 30 days ago is considered trusted. This is to ensure that all games traded are valuable, and help prevent fraudulent purchases for the purpose of trades. If you do not make a purchase on your Steam account after being labeled as trusted within a year your status will be reset and you will need to wait an additional 30-days before being trusted again.
Q: Does Steam Trading mean I can sell my used games?
A: No, only games that have been bought as a gift, and thus have never been played, can be traded. Once the Steam Gift is opened and added to your game library, you won’t be able to trade it again.