Can anybody recommend any good first player shootem up games on PC like house of the dead, time crisis,doom

Doom
Quake
Half life
Counter Strike
There's loads but it really depends the specs of the machines involved in the game.
I love Half Life, the first one, runs on ANYTHING and is extremely moddable and awsome for network play ;)

I enjoyed Call of Duty but it was an easy game to finish.

I am particularly fond of Battlefield 2.
Computer requirements, however, are pretty steep.

I also agree that Half-life was a good game but I have only played it on the PS2 not PC.

I always seem to go back to FarCry and Area 51 when I want a FPS on my PC.

I didn't really care for Doom 3, and I haven't tried Half Life or Quake 4.

Of course...
I used to spend hours playing the orignal Wolfenstien on my Pentium 100... :)

Thank you people

Counter-strike: source that's all I'm saying