After limping along with an underperforming Frankenstein's monster of a PC pretty much ever since I moved to California over three years ago, I made a considerable investment of blood, sweat, and cash back in January and constructed a gaming PC of fairly beastly proportions.

Then I played WoW on it for three months.

Now that I've finally kicked for the second time, I'm paying due attention to my first love: the first-person shooter. I already polished off Half-Life 2: Ep One and Sin Episodes, and over the next few months I plan to blast through every major shooter I've neglected the last few years. My current and hopefully soon-to-expand agenda is (list updated!):

-Chronicles of Riddick: Butcher Bay (starting tonight!)

-Quake 4

-FEAR

-FarCry

What shooters should I add to this list? Keep in mind I'm only looking for PC shooters, you Halo freaks, and I beat HL2 and Doom 3 at release, so those are ineligible. Anything else is fair game since, let's say, 2000. Post your favorites and I'll consider adding 'em to the list. This could turn into a bonafide summertime vision quest or something.

Edit: Prey is naturally going to join the list in the near future.