My HD is a Seagate Barracuda 7200.10 ST3320620AS (Perpendicular Recording Technology) 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive 
Performance
Interface 	SATA 3.0Gb/s
Capacity 	320GB
RPM 	7200 RPM
Cache 	16MB
Average Latency 	4.16ms
Didn't think the speeds would be that slow. I got the HD in october 06.  There must be faster drives out there, eh?