Mushkin Enhanced 8GB (2 x 4GB) SO-DIMM DDR3 1333 PC3 10666 Laptop Memory $29.99

Newegg.com has the Mushkin Enhanced 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1333 (PC3 10666) Dual Channel Kit Laptop Memory for $29.99 after $10 rebate with Free Shipping.