Seagate Barracuda 320GB 7200RPM Specs
320GB
7200RPM
16MB Cache
3.5″ Form Factor
Two Year Warranty
Serial ATA-600
Holding capacity: 100,000 photos/5,300 hours of music/320 hours of video/80 hours of movies
WD 1TB Blue 7200RPM Specs
1TB
7200RPM
64MB Cache
3.5″ Form Factor
Two-year limited warranty
SATA III
Lifetime Warranty
Holding capacity: 320,000 photos/16,660 hours of music/1,000 hours of video/250 hours of movies
WD Velociraptor 600GB 10000RPM Specs
600GB
10,000RPM
32MB Cache
3.5″ Form Factor
SATA III
5-Year Limited Warranty
Holding Capacity: 200,000 photos/10,000 hours of music/600 hours of video/150 hours of movies
WD Velociraptor 1TB 10000RPM Specs
1TB
10,000RPM
64MB Cache
3.5″ Form Factor
SATA III
5-Year Limited Warranty
Holding Capacity: 320,000 photos/16,660 hours of music/1,000 hours of video/250 hours of movies