Before zexen starts with his bombardment, can I nominate an old PC game (of my all-time favourite series):
The Secret of Monkey Island.
I searched the net for a decent banner for my sig, but I didn't find a good one. A banner for the whole Monkey Island series is maybe easier to do than just for the first game. Good ressources for screen- and packshots are www.scummbar.com or mobygames.