You might enjoy Dark Age of Camelot then. There's the obvious grind of all MMORPGs, but it also has the best PvP system around. Siege warfare = luv.
Thanks for the recommendation, Kevkit, but the only MMO I really considered playing for a longer period of time was PotBS but that one turned out to be a bit
too arcadish. I guess it´s a single player´s life for me.

Unless M&B goes online, of course...