What should I upgrade by the 2014 Q3?

bsod1

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Alright, so I just built this system under a budget and I was thinking what I could upgrade/add by next year. I know we don't know what next-gen hardware will be like but what are some essential hardware that I am missing? What will make everything better over all?

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Cabinet: K380 http://www.coolermaster.in/product.php?product_id=6741

Graphic Card: http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&pid=1790&lid=1

Motherboard: http://in.asus.com/Motherboards/Intel_Socket_1155/P8B75M_LX/

Memory: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233144

Keyboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233144

Mouse: Razer Deathadder (not 2013)

Mostly FPS/RPG games.