Looking for graphics card: Any recommendations?

[kevcarinlo]

I am currently running a 3.2 Ghz Pentium D system with 4 Gb (Running at 3.25 Gb) of ram on a Gigabyte ga-8i945p pro motherboard.

Transferred over my old graphics card onto here (NVIDIA GeForce 8600 GT) and was wanting to upgrade for a while now.

What graphics card should I get, or will be able to handle, or will be optimum?

Also, does the graphics card require certain requirements from the motherboard and/or processor/ram?

Thanks

 

[kevcarinlo]

Ps. Running on a 40Gb internal IDE HDD with 2TB external HDD, 500W thermaltake PSU