updated 5/17/10
7,200 RPM IDE(Maxtor/Western Digital/Seagate)
40GB $n/.a
80Gb $54.99
120GB $n/a
160GB $69.99
200GB $n/a
250GB $84.99
320GB (16mb cache) $89
400GB $N/A
500GB $97.99

Serial ATA
80GB $n/a
160GB $n/a
1.5TB $135
320GB $66.99
500GB $69.99
2TB $159.99
1TB $99.99 AND UP

Notebook Hard Drives
160GB $59.99 ($69 IDE)
250GB $69.99
Seagate SATA-500GB $99-$109 (7200 rpm)