Need Info with Video Card

I have a HP Pavilion a6337c PC with the following specs:

AMD Athlon 64 X2 Dual-Core Processor 5200+

3GB System Memory

500 GB Hard Drive

nVIDIA GeForce 6159 SE Graphics

I would like to know what is the best video card that I could use in this computer and if I need to change anything else

I have a HP Pavilion a6337c PC with the following specs:

AMD Athlon 64 X2 Dual-Core Processor 5200+

3GB System Memory

500 GB Hard Drive

nVIDIA GeForce 6159 SE Graphics

I would like to know what is the best video card that I could use in this computer and if I need to change anything else

twista34

go for a 8800gt if u play on high reso like 1650 or 1600

if u play on like lower res then get a 9600 its good for the price

But would I will be able to use it with my current computer configuration?twista34

wat is the current psu u have otherthan that ur set