I'd go with a Radeon card for video instead of the GeForce at this point in time. I'd also swap out the HDD for a Maxtor or Western Digital. Make sure you get a hard drive with an 8MB cache. Also very important, be sure to get a quality power supply from a reputable manufacturer. Antec, Enermax, Fortron, to name a few.
I dont think you mentioned what you were going to use for system memory. Kingston has a good quality 'value' line of RAM if you're wanting to save some pennies.
Get the Radeon 9700 Pro or 9800 (Pro) instead of the horrible loud and hot FX5800 (not to mention it performs badly).
Also I'm not so fond on IBM Deathstar (instead of Desktar because previous versions had a high failure rate) drives... personally I prefer the 8MB cache Western Digital drives (they come with 3 years warrenty too!) or Maxtor drives.
Also get a higher rated - and preferably a quality branded (like Fortron, Enermax, Antec) as low quality PSUs can cause a lot of instability problems - PSU as your computer is going to need atleast 350W.
My CPU fan spins so fast that it creates a wormhole
But, dunno why, but i'm getting mighty confused ;>.
Could some nice soul out there put togheter a good gamingsystem, with intel and radeon. Price about 1300$.
I'm mainly playing CS, but i wan't a powerfull system. You see, i'm eagerly waiting for Half Life 2.
Ohh, and that is 1300$ including screen. Is that possible?