Is it possible? When I was putting together my new system about 6 months ago I decided to go with the 5770 because of its price point in hopes of later on adding another and CrossFireing them together. Now I have the money to buy the second card and I can probably afford the small difference in upgrading to the 5830 series which has Eyefinity (an option I wouldn't mind having for my next upgrade) or possibly a 5850 if my bonus is as much as I'm hoping. I just want to make sure that you can indeed Crossfire a 5770 series with a 58xx series before I spend the money. Thanks for any input that can be given.