Over the course of the last month I've obtained both the Orange Box and BioShock. You could say that these are my first 'real' games. Before these two epic games, the only 'real' games I've played were simulators (Like MSTS and RTS's) and those free games that come with windows (Pinball ftw).
Half Life 2 (all of them) is probably the better of the 6. Runner up is BioShock and third is Portal. Then bringing up the rear is Team Fortress 2. But I really shouldn't be talking, should I?
Also, I've found these episodes of this old kids show called 'The Trap Door'. It's really entertaining, but in a dog-rubbing-his-back-on-the-carpet type of way....