nzwogboy: cheers for that eXDee. Also saw the Readon HD 4670. Do you think this would do the trick, it is a bit cheaper and the Gigabyte one has HDMI out. Does the 4 stand for the generation? So the 4670 is a new generation but the 3870 is a better model?
The model numbers are a bit confusingt, might have to take a look at wikipedia.
hashbrown: Hybrid crossfire with a 780G motherboard only works with 3400 serires cards, but it's more for better 3d performance, and doesn't sound like what you need.
Can you explain what you want to do here? I'd be surprised if you couldn't drive a cloned 1080p view from the 780G. If you want to extend your desktop or run different apps on different monitors/tvs, you should be able to use both the onboard video and any old card, even an NVidia one.
nzwogboy: It gives it a go then changes to a wierd supported resolution, not the one it was on and not 1080P. something like 13XX x 768 or something