I Want A laptop That works For School And Gaming?

I will Want A laptop that runs smooth and could run dayz mod, Garry's mod and minecraft

Your best choice would be the MSI Computer Corp. GP70 LEOPARD-010; 9S7-175A12-010 17.3-Inch Laptop
http://www.amazon.com/...00IQ4G8U8/
It will work fine for school and play all those games you listed above on high settings with great fps.

It has:
Intel Core i5-4200M 3.0 GHz
8 GB DDR3L SDRAM
1024 GB 7200 rpm Hard Drive
17.3-Inch Screen;
NVIDIA Geforce GT840M 2GB GDDR3 VRAM dedicated graphics card
Windows 8.1
5 hours battery life

ALSO MY BUDGET IS 800-900$