I have recently replaced every part in my pc except my hard drive. I've been researching them and really not sure which is best. I'm wanting a 2T internal hard drive and during my research I see some that are bare drives, which I understand is just the hard drive w/o any extras. I have SATA cables that came with my new mobo, so that's no problem. My question is will I need a manual? I've never replaced a hard drive, so I'm wondering how difficult it could be. Also, my mobo uses the 6.0GB sata cables, so I will, also, need a hard drive that meets that spec. I have a 500GB Seagate Barricuda Hard drive, atm, and it has done me well over the last 5 yrs and I plan on keeping it as a secondary hard drive for miscellaneous stuff. I'm having a hard time choosing between Seagate and WD. Any suggestions will be appreciated.