Oh this thread has me wanting to give Guild Wars a serious try...it's only too bad I'll be getting new games too soon to jump into a new MMO.

As for recommendations, if you like RPGs and have never played Baldur's Gate, go do it RIGHT NOW. If you like shooters I HAVE to recommend Half-Life and Half-Life 2, along with Deus Ex. Most of the other games I'm seeing recommended are strategy games, which I tend to hate outside of the Total War series and Total Annihilation.

Oh, also for good fun with three friends get Final Fantasy Crystal Chronicles, I just stopped after an eight hour binge at my buddy's house. It is rediculous amounts of fun for just 20 bucks.