I asked about this maybe a year or so ago. Im now within 10gb of being out of room on my stock hard drive and need to find a replacement soon. I can't decide between the WD scorpio blue and a Seagate Momentus XT. I know the 750gb has a 6gbs sata connection but my MBP only has a 1.5 connection. So, im not really sure if either of the XT's are worth the money or if i should stick with a WD SB. I would also gladly accept some recommendations about other drives that work well. Thanks.