Hmmm... so many to think of...
I GM MERPS/Rolemaster -- when newbies joined the group and couldn't handle the learning curve of the system we changed over to D&D 3.5 and set the game in the world of Middle Earth... it's working quite well.
I play a character in an Eberron Campaign.
Numerous board games like Iron Dragon, European Rails, Lunar Rails, A&A, Risk, Titan, SOTC, etc.
Also big fans of Munchkin (some of the offshoots are fun too, Supermunchkin, Munchkin-Fu, etc.)