[Need advice] Building a gaming pc!

Approximate Purchase Date: Next 2 weeks

Budget Range: $1500-$1800

Parts Preferences: Intel, Corsair, Asus

Overclocking: No

SLI or Crossfire: No

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CPU:
NEW INTEL CORE I5 3570K 3.40G/6M/S1155
OLD INTEL CORE I5 3550 3.30G/6M/S1155

CPU Cooler CPU COOLER MASTER HYPER 212 EVO

Motherboard: Gigabyte GA-Z77X-UD3H ATX LGA1155 Motherboard

Memory: CORSAIR VENGEANCE 1600MHZ DDR3 8GB KIT C9 LOW PROFILE

Hard Drive: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive

Hard Drive: Crucial M4 256GB 2.5" Solid State Disk

Video Card: ASUS PCIE GF GTX660TI DC2 2048M BTE DDR5

Case: Corsair 400R ATX Mid Tower Case

Power Supply:
NEW Corsair 650W ATX12V / EPS12V Power Supply
OLD Corsair 750W ATX12V / EPS12V Power Supply

Optical Drive: Asus BC-12B1ST/BLK/B/AS Blu-Ray Reader, DVD/CD Writer

Operating System: Microsoft Windows 7 Home Premium SP1 (64-bit)

Update

INTEL CORE I5 3570K 3.40G/6M/S1155
CPU COOLER MASTER HYPER 212 EVO
Corsair 650W ATX12V / EPS12V Power Supply

Power Supply

Modular vs no Modular
It is really useful ?

CPU Cooler

l guess with this cpu cooler.. l need ram with "low profile" ?

bump

I say geta 128GB SSD, and invest the rest in your GPU. A 7970 or 670 will be good.