I tend to buy games then sell them so my library is quite small. I still have things I want to do in games I have.
My shelf currently has
Gears of War (will finish it on insane)
Viva Pinata (hopng for a good expansion)
Lego StarWars (finished it but want a few achivements)
Test Drive Unlimited (keep telling myself I'll go for the 5000 miles achievement)
Crackdown (current game)
Oblivion (a) My mrs is still playing it and b) I knew there would be some expansions.)
What's Quake 4 like? Having played everything from Castle Wolfenstein, Doom through Quake 1, 2, 3 and that fantasy one I can't remember the name of to Doom 3 I kind of feel I owe it a look. (Heard the loading times were abysmal?).
Heretic! Remembered. (Sorry for the sidetrack)