You don’t need a quad core for DV, a 2.4ghz core 2 duo would work fine, if it would make your pricing better, I like to use a 3 disk setup, a small 80gig for OS, Apps and virtual memory, a medium sized one, 160-250gigs for preview files, temp files, audio files, still images, cache files, etc, and a large one, 500-750gig for just video files.