New PC Build. Input Requested

[Celt]

Here are the specs on the PC I plan on building.
It will be primarily a gaming rig, with some software development applications and some heavy photoshop usage.

This is my first "true build" completely from scratch.

My budget is as close to $1000.00 as possible, no more than $1200.00

CPU: Intel i5-750 Quad 2.66 -$199.99 Here
Mobo: MSI P55-GD65 -$154.99 Here
GPU: HIS Radeon 5770 -$189.99 Here
PSU: OCZ Fatality 550W -$64.99 Here
HDD: WD Caviar Black 640 GB -$74.99 Here
RAM: OCZ Platinum 4GB DDR3 1333 -$99.99 Here
Cooling: Cooler Master Hyper 212 Plus -$41.85 Here
Case: Cooler Master Storm Scout -$94.99 Here
Monitor: Asus 23.6” 1080p LCD -$179.99 Here
OS: Windows 7 64 bit -$104.99 Here

Total cost after discounts: $1160.21

Any input on improvements or component upgrades/downgrades are welcome.
Anyone have experience with any of the components or a similar build?
Thanks.

[glc]

1. Recommend you change the motherboard to an Asus P7P55D.
2. No need for that cooler unless you will be heavily overclocking.