Does anyone have any experience with the new Nikon Coolscan V ED Film Scanner? (It has not yet received its own listing in the Reviews section of this site.) Specifically: Is it worth the approximately $200 - $300 difference vs. the Coolscan IV? How does it compare to the Nikon film scanners with 4-digit indicators (4000, 8000)? How does it stack up against "the latest" from other manufacturers?