hey guys, i am new to moddind. in 2012 i bought some new components to my computer. i would like to know what i could add more to improve it .
this are my computer specs:

-asus eah 5770 cu core
-as rock z68 pro3 gen3
-i7-2600k, 3.4 ghz 8 mb cache, lga1155, 95w
-nx 620
-nhance Corsa DDR3 4GB x2 1600MHZ HardCore Gaming Memory
-zalman z11 plus
-300 gb disk