I just upgraded my desktop hard drives. I had two 250 GB drives with only 50 GB free space between them (I keep my photos and the office photos backed up on the second drive). So I cloned the old drives to two brand new 400 GB drives, and added two 300 GB drives in addition for extra storage and backup. I cloned the boot drive to one of the 300 GB drives for added safety, and am re-burning my old cd and dvd photo backups to insure data integrity. Guess what happened to my new (4 days old) 400 GB boot drive? zzzzt-clik-clik-zzzzt-clik. Absolutely the most horrific sound you can get out of a computer- a hard drive going down in flames. Fortunately I have two boot drive backups-the old 250 and the newly cloned 300, and I just switched boot drives in the bios settings and back in business in just a minute or two. I sent back the defective 400, and am waiting for its replacement (this week I hope). Gotta love redundancy-I hate losing data and having down time on my pc's.![]()