I'm editing a new project with about 40gb of raw footage, with cs4 on an intel xeon dual core 3.0 ghz processor. the footage is 1080 60i and it just seems way slower to edit, and choppy on playback on basic transitions like dissolves instead of playing smooth like with sd footage that i've edited on cs3. it's a real pain in the ass to edit with just trying to view the footage to analyze cuts is costing me way too much time and i' won't make my deadline at this pace. any suggestions? do i need to buy a fatty video card like canopus or something?