Buy.com has the Kingston HyperX Blu 8GB (2 x 4GB) DDR3 SDRAM 1333MHz 240-pin Desktop Memory - KHX1333C9D3B1K2/8G for a good price.

Pricegrabber Price : $42.28 ~ $49.02 Shipped

1. Buy.com Price : $39.95
2. Rebate Price : -$15.00 ( Exp : 11/2/11 )
Final Price : $24.95 Shipped After Rebate