Which laptop?

http://www.gaminglaptopsjunky.com/lenovo-ideapad-y400-i...

Or

http://www.gaminglaptopsjunky.com/hp-pavilion-dv6t-7000...

I will be playing Battlefield 3 and Call of Duty series. And a whole bunch of other games. Mostly shooter, strategy, RPG, action. Another question I have is heat issues, my parents won't let me have a desktop, so will a fan be sufficient? Should I let my laptop take a break every two hours? I need this laptop for at least 3 years, should be in good condition.