I'm going to challenge myself (and my family's patience) by attempting to play two MMORPGs at once. Everquest II (EQ2) hit the store shelves in early November, and World of Warcraft (WoW) showed up on my doorstep last week. Each game has the potential to suck up huge amounts of free time in its own right. So, it will be interesting to see if I can play both and make meaningful progress on my characters without having to devote every waking hour to playing them. I'm enjoying both, but right now WoW is holding my attention the most due to its addictive gameplay and rapid leveling. EQ2 is certainly the more "hardcore" of the two games, and there is almost too much to do in the game.
It will be interesting to see how this plays out over the coming months.