First Build Assistance Requested Please!

[FluffYouUp]

http://pcpartpicker.com/p/J8rT This is going to be my first build, I have some concerns, I don't plan on overclocking so I'm not sure if the heatsink I have here is a necessity, and if low-profile RAM will fit between my mobo and this thing. Suggestions would be greatly appreciated!

 

[Boxasauras]

Change your PSU. You don't need that much wattage.

On the heatsink, it's only $30, so why not?

Also added in an SSD. Judging by the quality of your parts, you're doing some sort of gaming, so that will greatly increase your loading speeds.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($189.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.99 @ Amazon)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ NCIX US)
Storage: Crucial M4 128GB 2.5" Solid State Disk ($119.99 @ Microcenter)
Video Card: EVGA GeForce GTX 670 2GB Video Card ($379.99 @ Newegg)
Case: NZXT Phantom (White) ATX Full Tower Case ($119.99 @ Amazon)
Power Supply: SeaSonic 620W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($86.98 @ SuperBiiz)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($16.98 @ NCIX US)
Total: $1217.88
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-12 00:06 EDT-0400)