Cool reading what everyone else plays regularly. As for myself, I run a bi-weekly DnD campaign (sometimes monthly, or bi-monthly, unfortunately). We also play a weekly HeroClix tournament (myself, my brother, and our friend, we have modified tourney rules which include 50 minute matches, limits on team building based on powers, etc... we take turns buying a pack of Clix and the overall winner at the end of the night gets the pack). Recently we dug out the Star Wars: CCG from Decipher and started messing with that. Also I bought the new Star Wars Minis starter set and a booster pack, but haven't had time to play it yet. We play the old X-Files CCG semi-regularly. Board Games are by far the most frequent though. We do a lot of Clue, Life, Monolopy, Payday, etc... my friend's wife trolls around yard sales and buys old board games for like a buck a piece and then we sit around and play them for all hours of the night. Plus there's always the X-Box, and I have my old Atari 2600 hooked up as well. Can't beat that. Once in a while we get a massive Uno game going too.
Trying to get my girlfriend to do non-boardgame gaming, but it's a hard sell. "What do these little numbers and colors mean on this little Batman? Ooohhh, it spins!!!". Sigh.