Hmmmm.. there are some really sweet game out there.
Everquest II
World of Warcraft
Dark Age of Camelot
City of Heroes
Final Fantasy XI
And some really cool ones upcoming
The Matrix Online
Guild Wars
Dungeons and Dragons Online
Middle Earth Online
Star Trek based MMORPG
http://www.mmorpg.com/gamelist.cfm/gameId/0 Great site for MMORPG fans.