Please review my gaming build

CPU: Intel i5-2500K $220

CPU Cooling: Hyper 212 - $27

Motherboard: ASUS P8Z68-V LX $125

RAM: G.Skill Ripjaws Dual Channel 8GB (2x4GB) DDR3 1600MHz - $34

HDD: 128 GB Crucial M4 $160

500GB 7200RPM SATA 6GB/s 16MB cache WD $90

Graphics Card: GTX 560 $190

Case: HAF 922 $100

PSU: Antec EarthWatts 650W $80

Optical Drive: Sony Optiarc AD-7280S 24x SATA DVD-RW Drive - $19

Operating System: Windows 7 Home Premium 64bit - $100

I 'm going to be building a new desktop PC in the near future, primarily used for gaming and web surfing.

I am not planning on overclocking. Also I don't need SLI so I don't need a higher W PSU.

I just want to get the most reliable parts for my money. The components I am not sure about are the mb and the psu. I don't want to go my higher as this is pretty much my max budget. I don't care about case appearance so if there's a case that has better cooling / cable management please let me know.

Thanks in advance for any input.