I have a new MBP (purchased last week) and am looking to purchase a 500 GB external hard drive for backup/storage. I am looking to use FireWire for transfer - due to speed, as eSATA does not appear to be an option (port wise). I read thru the forums and am looking for a specific brand/model recommendation. I was going to go for the Western Digital 500GB My Book (which has FW400/800), however, I read many negatives. I would appreciate any specific input / recommendation. Thank you.