Dell Home offers the PNY GeForce 8800 GTS 640MB PCI Express Video Card, model no. VCG88GTSXPB, for $330.65 with free shipping. That's the lowest total price we could find for this card by $31. Sales tax is added where applicable. It features a 500MHz core clock speed, maximum resolution of 2560x1600, and Dual DVI, VGA, S-Video, and HDTV outputs.
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A0962588
http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A0962588