I just received two new 2 TB hdds from newegg, and would like advice on the best process to go with. Here's what I want to accomplish: Put a fresh install of the current OS (Windows 7 Pro, OEM software) onto one of the new drives. (I've read OEM software is not fully install-able on a blank hdd in some cases, but maybe that referred to OEM win 7 Home Edition, which comes from a store, like a Dell? I bought this OEM Pro from Newegg when I built the machine.) Need to eventually move a bunch of my files off the old hdd. The old hdd is a WD 1 TB, only sata 3 and 5200 rpm. I also need a solid backup process put in place, so was considering RAID setup using both the new drives. Does that require any special hardware or cabling, or is it all done behind the scenes with 2 normally installed sata drives? I won't hit near 2 TB for a long time, so maybe I just go with one new drive internal for everything, and use the old drive as an external (use for back up), and save the additional new drive for who knows what. Couldn't help it, they were 89 dollars. I have no enclosure at the moment, so is it possible to leave the old drive in the rig and somehow make it not bootable? Can I simply not point the BIOS to it and problem solved? I built this rig, so know my way around the system pretty well. However, I've never done this kind of upgrade before. Thanks for any input you folks can give!