I go with Dave in this. An I7 is the way to go. Understand though, Vegas is a CPU based only program so a good Invidea card with a GPU will make no difference in preview quality or render speed. But Premiere can make use of Graphic card GPUs and give you better preview frame rate and faster render speeds. With an I7, you don’t really need it, as it’s fast enough to see what your doing, without pre-renders as long as your not editing MP4, H.264 or AVCHD files with alot of tracks an effects. Hope this helps, Danny Hays