On the computer ... currently
SiGames' Football Manager 2005.
I'm also pretty addicted to
this flash game, and have been for the past 5 or so years since it came out!
The only other game I have on the PC is EA Sports' FIFA 2005 which my wife bought me. She also got me Age of Empires with tonnes of expansions, but I never loaded them.
That's it. For real sports, there is only one (I watch not play) and that's the EPL ... BTCC and any Rally are definitely entertaining though, but we don't get them on TV here.