You can go to Laptop Price List
for good selection. But I recommend you to buy Asus A53Z-AS61 Mocha
(15.6″ 1366×768, A6-3420M, 6GB DDR3, 750GB HDD, Win7-64 Premium).
It is much better option than Intel B950/B940 with HD3000 for movie playback and it is cheap.
It is a Quadcore AMD CPU with fast GPU embedded.