nighthawk,

Your video card will not impact rendering speed. It may help the screen update while modeling if you are using one of the accelerated video modes in the 3D View. However I wouldn't use that as an excuse to upgrade your video unless you are also looking for faster game performance or something. The software renderer in the 3D view is very snappy and much more reliable.

Best regards,
Eric Winemiller
Digital Carvers Guild
Freeware and commercial 3D extensions
http://digitalcarversguild.com

Eric Winemiller
Digital Carvers Guild
Carrara and LightWave plug-ins