I'm trying to decide between these three drives. Based on the only review I can find of the new 750GB Scorpio Black (http://techreport.com/articles.x/20255/3), the drive appears to outperform the hybrid Momentus XT drive. If that's true (i.e. if I'm not misunderstanding the data in that review), then we can scratch the Momentus XT off the list. This leaves us with question #2. Does anyone know if, given the higher data density in a 1TB notebook drive, can the 1TB Scorpio Blue compete with a 750GB 7200rpm drive like the Scorpio Black? Thanks!