I bought mine with prostar, they upgraded the cpu for me (i7 2820), 16Gb memory, bluray buner and other stuff, is a great store, the pc came in 5 days, I'm living in NC and the store is in CA, if you want to change the configuration, I recomend they.
The site is
www.pro-star.comI hope that it helps you.
ASUS G74SX-3DE
Intel Core i7-2820QM @ 2.2GHz
16GB DDR3 RAM
nVidia Geforce GTX 560M 3GB DDR5 VRAM - 192 bit - With 3D Vision
Blue Ray Burner
Intel Centrino Advanced-N 6230
17.3" 1920x1080 FULL HD
BIOS - 203
Windows 7 x64 Ultimate