OzHardware posted a review on the Western Digital Scorpio 320GB SATA-II 2.5inch Hard Drive

Western Digital have once again pushed the boundaries of size with their latest notebook drive coming in at a massive (for a notebook) 320GB. Coupled with a Serial-ATA-II interface an 8MB cache, it's sure to be a good
performer. We find out.

Western Digital Scorpio 320GB SATA-II 2.5inch Hard Drive Review