Run ATi and nVidia on a single mother board
Alright! Here is the deal. Tom's hardware have made a test about running an ATi X800 and GeForce 6800 Ultra on an SLI mother board. They also explain how to switch the graphic cards while running windows. It is a must read.
[code:1hu1ugfk]an SLI computer with GeForce 6800 Ultra or GT beats everything for performance! The performance reserves of an SLI system are tremendous. Even with an Athlon64 4000+ the cards almost always have to wait on the CPU.[/code:1hu1ugfk]
Read the whole article [url=http://www20.graphics.tomshardware.com/graphic/20041123/sli-performance-32.html:1hu1ugfk][b:1hu1ugfk]here[/b:1hu1ugfk][/url:1hu1ugfk]. (the article is three pages long.)