Use Newegg coupon code latesttech1 during checkout.
Newegg has this Western Digital WD Black WD4001FAEX 4TB Internal Hard Drive for $329.99 after instant savings. Shipping is free. Save another $30 when you apply the coupon code. It features 7200RPM spindle speed, 64MB cache and comes with a 5 year warranty. This same hard drive is sold at J & R for $332.99.