Just thowing this into the mix. Running dual GTX 570 HD 2.5G in SLI mode and also get the crashes as described in several posts. I can play for several hours as long as I stay away from the cities and dynamic events. But if I stress the video cards, I’ll eventually crash.
The game never crashed on me during beta. Memory test is Sat. Tried all drivers, currently using 306.02 as it seems to work best. Changing video settings to “best performace” seems to help a little too.