Newegg.com has the Western Digital My Book Essential 1.5TB Desktop External Hard Drive for a good price.

Pricegrabber Price : $124.79 ~ $124.88 Shipped

1. Newegg Price : $99.99 Shipped
2. Use coupon code EXXTHD10 to get $20 off ( Exp : 6/11/12 )
Final Price : $79.99 Shipped