Well, you all finally got me to post. Of course you had to get me to brag to do it ;)
Stranglehold
Metal Gear Solid 4
Bioshock
Phoenix Wright: Trials and Tribulations
I think that's it for now.

Thanks for fixing. :-)
I have completed two more games now: Musaic Box and Emerald City Confidential. Both were very enjoyable.
Edit: And now also The Path. Which was ....interesting.

Let's see: Neverwinter Nights 2, F.E.A.R. 2, Dawn of War II, COD: WaW, Mirror's Edge, Prince of Persia

It must not of had its fill on rep this time around.
I finished Diablo 2 + Lord of destruction expansion.

Finish The Legend of Zelda

Finished Bioshock... and what I game might I add.
If you haven't played it... you owe it to yourself to give it a try.
Near perfect atmosphere, graphics look very nice and it's a blast to play.

Hehe yeah, better not eat my second star, I think its only you, me & weclock who have them, don't wanna look like a n00b again

Finished 87% of Prince of Persia: The Sands of Time and then quit.
I didn't technically finish it but I am finished with it.

Hated it?

I hated the combat and the fact that my companion kept dying over and over again no matter how many times I replayed the same section. But I loved the platforming parts. Why does the game even need combat? I would have loved it if it was just a bunch of awesome time rewinding platforming.
I have a similar problem with a lot of games where the combat intrudes on what would otherwise be a fantastic game. If you are going to make combat make it good or not at all. Anything in-between is unacceptable.

Finished Sanitarium and Planescape:Torment (again, this time - as a magician...).

Finished Neighbours From Hell 2....wasn't as good as the first but still kind of fun regardless.

Just finished Jagged Alliance 2, awesome game, my only disappointment was a lack of final words from diedranna as I turned her head into mush with a steyr!
I have also finished the v3.0 remake of Kings Quest 1.
So I guess my next games will be JA2: Unfinished business, and KQ2 remake (again, the new version, just so I can say I've completed every version out there!)

I beat Guitar Hero On Tour Decades on Lead Guitar Hard and Bass/Rhythm Expert. Hoping to beat regular On Tour on Expert soon, too (the intro of I Know A Little keeps killing me :( )
I almost think I beat Prince of Persia 08 this year too, but that may have been before the new year. Can we count it as the latter anyways?
Oh and Time Hollow. That was pretty fun, if short.