See, the thing is, playing games on a laptop usually sucks because of the battery life,
Besides that here are some better laptops:
http://www.newegg.com/Product/Product.aspx?Item=N82E16834220566&Tpk=34-220-566
http://www.newegg.com/Product/Product.aspx?Item=N82E16834114659&Tpk=34-114-659
If you want to take a deeper look: http://promotions.newegg.com/nepro/nb/index.html?cm_sp=Homepage_LB-_-nepronb-_-http%3a%2f%2fpromotions.newegg.com%2fnepro%2fnb%2f620x130.jpg
Reasons to get Windows 7:
Snap to maximize windows
Formatting huge hard drives
It's Vista but better
The ASUS M4A78-E sucks, don't get it.