What laptop is the best for me?

I need a laptop for my school work and maybe a little bit of minecraft maybe. I don't want to spend more than $450.oh and if you can find one with touch screen it would be a better experience for windows 8 I've heard. I want it to last 5 hours or more if possible, and be a 15 inch or bigger. I don't want to spend much because I will probably just be using it for school work and YouTube but I wanted to try out minecraft and if I don't like it I didn't spend another $200-$400 on a real gaming laptop.