I am in the process of building a upgraded desktop PC and began by looking at compatible mobo's to compliment an AMD athlon II X2 cpu. The ones recommended by AMD all seemed to have onboard ATI radeon GPU's. After further research, I discovered that nividia also has mobo's with it's chipset installed for the GPU. Like the GeForce 8300 and the nForce 730a.
So the thinking here is : would it be worthwhile to get a mobo with the onboard nividia chipset, to save a few bucks...or...get a mobo without onboard graphics and snap in a moderate graphics card basesd on nividia ?? I appeal to the wisdom of the counsel of my fellow Vectorites and Vectorians.

I'm currently using an AMD motherboard for my DIY NAS project. It has onboard ATI graphics, which work fine for my purposes. Not sure if the graphics would be fast enough for gaming, but they work fine for the Amahi server software installed on the box now. Fedora had no problems setting up the desktop to the full 1280x1024 that my monitor is capable of.
I'd go for it - you can always install a Nvidia card later if you feel the need. I'm quite happy with the performance of the AMD board so far.
Paul.