Micro Center discounts a selection of Western Digital internal hard drives, as listed below. (Discount appears in cart.) With prices starting from $56.69, that's puts each at the lowest total price we could find by at least $7 and as much as $42. Shipping adds $5.99. The deals:

• WD 1TB WD Mainstream Serial ATA 6Gb/s 3.5" Internal Hard Drive (pictured) for $56.69
• WD 2TB WD Mainstream Serial ATA 6Gb/s 3.5" Internal Hard Drive for $62.29
• WD 3TB WD Mainstream Serial ATA 6Gb/s 3.5" Internal Hard Drive for $89.99
• WD 4TB WD Performance Serial ATA 6Gb/s 3.5" Internal Hard Drive for $199.79