Need to find a good multiplayer RPG

[RaiDae]

I'm gonna throw something at ya now, are ya ready to catch?

Guild wars.
It's multiplayer (up to 8 players), an rpg, for the pc, fairly cheap, addictive and (most importantly) fun.
I've had the game for years, completed all 4 games in normal mode and i'm still playing it (spontaneously though).
There's 2 modes - Campaign and PvP. In campaign you do hundreds of side-quests, a fair number of primary quests and about 20 big missions - and you can do them all with up to 7 friends (however, at the beginning your limited in the number you can take with you). Oh, and you get graded on how well you do the mission, either by completing bonuses or completing it within a time-limit.
In PvP, you fight with (or against the people in) your guild. There's tournaments etc etc.
The game has extras and the like, but this isn't a review and it may not be your thing - however, if you are interested in knowing a bit more, i'll be more than happy to help.