Hi - I'm looking to purchase a new 15" MBP and am considering configuring it with a SATA III SSD in the main drive bay* and a 7200rpm hard drive in the optibay (via an adaptor). I will use the SSD in the drive bay as my main boot drive, which should avoid hibernation problems. The main issue, I think, is that the optibay is not supported by the laptop's own sudden motion sensor, so I want a drive with built-in shock-protection. I was considering putting a WD Scorpio Black drive in the optibay as, if I've understood correctly, this has built-in "ShockGuard" technology (as well as being a fast, reliable drive), so should compensate for this - can anyone confirm whether this is correct? Does this aply to all Scorpio Black models? Thanks * will probably use a 256Mb Crucial M4 SSD for this, was thinking of ordering the MBP with a 5,400rpm 750Gb drive and taking this out and putting in an external enclosure and using it for Time Machine backups.