New to PC building

Hello,

I'm planning to build my first gaming pc. I would just like some input for the parts i'm using:

Gigabyte GA-Z68AP-D3 S.1155 Intel Z68 ATX Motherboard

Intel Core i5-2500K Processor 3.3GHz 6 MB Cache Socket LGA1155

Corsair CMZ8GX3M2A1600C9B Vengeance Blu 8 GB PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit

EVGA 015-P3-1480-KR GeForce GTX480 1536MB GDDR5 Dual DVI, HDMI, SLI Graphics Cards

SAMSUNG 830 Series MZ-7PC064B/WW 64GB 2.5 SATA III MLC Internal Solid State Drive (SSD)

Corsair Enthusiast Series CMPSU-650TX

Thank you !