I'm installing a new 5400 rpm drive in my Dell to replace the 4200 rpm stock drive, and I'm wondering if I will take any performance hits if I partition it into 2 partiions: 1 for the OS, and the other for data. I was thinking it may take a hit becasue when it has to reference program files, it has to go to the beginning of the disk, then to reference data files, it has to swing back out to the outer part. Am I crazy?