WD 750GB is a very fast 7200RPM hard drive
WD's 750 GB Hard Disk Sets New Records | Tom's Hardware
With peak data rates up to 95 MB/s, the 750 GB top-of-the-line member in the Caviar SE 16 family is the fastest 7,200 RPM hard disk we've seen in our test labs to date. Even the median value of nearly 75 MB/s is on a par with that of the 10,000 RPM Raptor drive WD1500, and its minimal transfer rates clearly trump those of the competition.
WD's 750 GB Hard Disk Sets New Records | Tom's Hardware