What you need is a graphic card that has a good openGL implementation , and loads of memory. You don't need the highest end of graphic cards for Vue. Higher end are very expensive, and don't deliver much more power than more consumer cards. They are certified for high end apps and their technical support is garanteed for years, which is not the case for consumer cards. Their garantee  have a very short life span. ATM, 8800gt cards work very well with Vue, and get the one with the more ram you can find.