Jim,
If you have the rest of the support for it, I'd go with this:
XFX nVidia card- (~$97 with rebate and shipping)
<http://www.newegg.com/Product/Product.aspx?Item=N82E16814150230>
I have not had completely good use of an ATI card yet. I do have a server
with
an on-board ATI RAGE chip. It does still work. Nothing to write home about,
however. Very old.
Have done nVidia since along time ago. I'll admit that my "fastest" nVidia
card
is a FX5600, and, I still use PCI and AGP slots. So, YMMV. But, I still
believe
nVidia has the edge for general use. Others, may differ.
Best,
Duncan