I'd be wary about using this guy, I went first on a CSS/DODS account sell and I received the e-mails about the changed information but he did not pay up.
I have an account with left4dead/tf2 and a separate account with 1.6/cz.
I got scammed already (yesterday) so I'm skeptical about going first again. Was a CSS account got stolen.
so basically you are trading HL2 for a CSS account.
Portal The First Slice is simply a very short demo given to Nvidia card owners, it also comes with Peggle Extreme, Lost Coast and HL2DM.
ATI Users can get those games except for the Portal demo and Peggle.
http://www.steampowered.com/nvidia/...