I've been hearing good things about the Spinpoint Drives and the 750GB ones are coming down in price. Here is my current setup: 1 - 500MB Drive - Leopard 2 - 320MB Drive - Vista 64 3 - 500MB Drive - FAT32 (Shared, Irrelevant) I plan on replacing drives 1 and 2 with 750GB Spinpoint drives. My question is, can I boot off of the Leopard dvd and put in Drive 1 and NewDrive1 and just clone it, and do the same for Drive2 and NewDrive2 and clone it? And then go into Leopard and resize the HFS partition, and go into Vista and resize the NTFS partition? Orr.. am I going to have the nightmare of reinstalling the OS for each drive and OS?