Hey Steve, no problem.
If you're concerned about video cards, I'd recommend you check out tomshardware.com and look at the charts and benchmarks they have there. It just really depends on what you want to do w/ your computer.http://www.tomshardware.com/graphics/graphicscards/index.html
I really haven't kept up w/ the graphics card industry at the present.
At first glance, I'd take the 6800 since it has the 256-bit wide bus.
You may want to start another thread for this topic. =)