ok so about a year ago i had a custom built system and i purchased a seagate 500 gig sata...well over the past year i've loaded almost 80% of it up, so i'm thinking about upgrading to a 1 or 1.5 tb drive...my question is, is how easy is it to transfer all the data on my current drive to the new one? i don't mind having to reinstall the OS (which is xp btw), but do i have to reload all my programs and files all over again?...also my current drive i'd like to keep as a second slave drive...but will i have to reformat this drive since it has the OS on it?...i'd like to keep the old drive how it is with backups of my current files...im just curious if there is a easy way of doing all this...also with the new harddrive, do you guys recommend Seagate again, or another brand? i've been out of the loop for a year and i'm not sure what's the best recommendations as far as new technology with harddrives go...thanks guys...