Guild Wars (Just get all three campaigns/continents in Trilogy Pack @ guildwars.com/store; it's like 49.99). Amazing game.
Then buy the $10 expansion Eye of The North (it has dungeons!!); which will act as the brdge between GW and GW2; introducing the new races that are coming in GW2; and you get to put all your titles and heros and minipets and some armor/weapons in "your" Hall of Monuments; where they'll remain until GW2, 250 years later, when apparently your character's descendant discovers the Hall and proceeds to desecrate your tomb and take all your stuff...how's that for ancestor veneration?
By the time you're done with those (if you've even come close to doing it all by then); you'll be just in time to move on to gW2 when it realeases (prob. April 22, 2010: the 5th anniversary of the original GW release). You can check out the GW2 trailer and art; lore; and changes (fully underwater areas!!) @ guildwars.com or arena.net.
Try them....you won't regret it.
Friendly Tip: Don't start off as a mesmer, you'll experience a profound sense of inadequecy until you're better at the skill system of the game. Also, Nightfall, the third campaign, has the best story, at least in my opinion.
Hope you try it!
