Update: Taken by Akkre in the comments.
Last week I bought The Orange Box as a present to myself. I’d seen somebody playing Portal, and my first impression was SCREW FRIENDSHIP MUST WRESTLE FOR KEYBOARD AND PLAY FOREVER, but I managed to resist until my projects were done. So I now have Half-Life 2, HL2 Episodes 1 & 2, Portal and Team Fortress 2. Oh, and Peggle Extreme. Should keep me busy for a bit.
I already owned Half-Life 2, so they said I could give away the newly-purchased license. So here I am. I’m not sure exactly how it works, but one way or another you’ll need a Steam account to redeem it, and the download will be a couple of gigabytes. Email or leave a comment if you’re interested – I’ll update this post if/when it’s taken.