Building my first custom PC

[Cassie]

I'm very excited for this project and have been planning for the last few days. I am a beginner, so please forgive me if I make some newbie mistakes. I'm teaching myself little by little. :]
What I'll mainly be using the machine for is some video editing & capturing (nothing too heavy though), basic Photoshop-ing, and the average web surfing. My current machine is getting very outdated and I'd like to give building my own a shot.
I thought it would be smart to ask a more experienced person to look over my plans make sure everything will be compatible, if my parts will run everything smoothly, what I should upgrade, are the brand names good, am I missing anything, etc. Basically, any help you can give is appreciated, even if they're small tips. :]

So, to the plans!

Motherboard
ASUS P7P55D-E Pro LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

CPU
Intel Core i7-860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor

Hard Drive
Western Digital Caviar Green WD10EARS 1TB 5400 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive

Optical Drive
LITE-ON Black 18X DVD-ROM 48X CD-ROM IDE DVD-ROM Drive Model iHDP118-08

RAM
G.SKILL Ripjaws Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL8T-6GBRM

Video Card
SAPPHIRE 100283-3L Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card

Operating System
Windows 7 Ultimate 64 Bit OEM

Case
Antec Three Hundred Gaming Case External 3 X 5.25; Internal 6 X 3.5 2*Usb2.0

Power Supply
CORSAIR CMPSU-750TX 750W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply

 

[orihS ‪‪‪Shiro]

Ditch that Hard Drive for a Caviar Black.

The Caviar Greens are not intended as primary drives.

Ditch that CD ROM IDE drive and just buy a SATA DVD burner for $25~

You need a dual channel set of RAM for that motherboard and CPU
So ditch that triple channel set.
Get 4Gb (2x2Gb)

Ditch that PSU and get a 500w PSU unless you want to crossfire in the future, even then a 650w PSU would tie you over with 5770's

Ditch Ultimate for Professional.
The only difference between Ultimate and Professional is that Ultimate comes with language packs...
So I'd only get it if you need a language more than English or Chinese...
(Pro comes with English and Chinese)

Besides that, it's looking like a decent build.

Fix all of the things I mentioned.

 

[Cassie]

Thanks for the help. :]
So with those revisions I've got:

Motherboard
ASUS P7P55D-E Pro LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

CPU
Intel Core i7-860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor

Hard Drive
Western Digital Caviar Black 1 TB SATA II, 32 MB Cache, 7200 RPM, 3.5-Inch Internal Hard Drive WD10000LSRTL

Optical Drive
ASUS Black 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA 24X DVD Burner

RAM
G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Dual Channel Kit Desktop Memory Model F3-12800CL9D-4GBNQ

Video Card
SAPPHIRE 100283-3L Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card

Operating System
Microsoft Windows 7 Professional 64-bit OEM

Case
Antec Three Hundred Gaming Case External 3 X 5.25; Internal 6 X 3.5 2*Usb2.0

Power Supply
CORSAIR CMPSU-550VX 550W ATX12V V2.2 SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply

 

[Muffin Man]

looks good.