Buy.com has the Kingston 8GB (2 x 4GB) DDR3 SDRAM 1333MHz PC3-10600 204-pin Laptop Memory - KVR1333D3SOK2/8GR for a good price.

Pricegrabber Price : $54.99 Shipped

1. Buy.com Price : $49.95 Shipped
2. Rebate Price : -$15.00 ( Exp : 8/11/11 )
Final Price : $34.95 Shipped After Rebate