Hmmmm,...if you are contemplating an NVidia card, I would wait until late August.
ATI will be releasing the R300 based video card in August (latest speculation) and with its performance (over 14,000 3DMarks in early hardware/drivers) NVidia will probably drop the prices on thier cards pretty sharply.
NVidias NV30 chip is being held up in production due to TSMC not being able to get to the .13u process (looks like Feb/Mar 2003).
Just FYI.