I'm gonna give you some advice on current parts and hand you off a build of my own.
$100 mobo (ASUS M4A87TD/USB3 AM3 AMD 870 SATA 6Gb/s USB 3.0 AMD Motherboard)
Or this mobo GIGABYTE GA-870A-UD3 AM3 AMD 870 SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Either/ Or
$177 CPU (AMD Phenom II X6 1055T Thuban 2.8GHz)
Absolutely!
Good case all and all.
$159 RAM G.SKILL Ripjaws Series 8GB (2 x 4GB)
Good Choice.
$64 1 TB HDD HITACHI Deskstar
Alright...
http://www.newegg.com/Product/Produc...-185-_-Product
That's $6 cheaper and has better performance.
$139 SSD Choice # 1 Choice #2 Kingston SSDNow V Series or OCZ Agility 2
Definitely Agility 2.
$30 CPU cooler Cooler Master RR-B10-212P-G1 Hyper 212 Plus
I'm kind of confused why you need this. It didn't say anything in the OP about Overclocking. If you are new to building PCs then you'll probably want to avoid "OCing" the first time around anyway. The CPU comes with a cooler capable of cooling the CPU at the default clock speed. No need to worry yourself attaching aftermarket coolers both physically and economically.
$139 Windows 7 PRO 64 Bit System Builder 1pk
Good.
$3 Arctic Silver Compound
Ok (Thermal paste is thermal paste as far as this build goes)
$30 Tool Kit Belkin 36-Piece Demagnatized Computer Tool Kit
I like Magnetized just in case you lose a screw in the case or something.
$20 Optical Drive SATA DVD Burner - Bulk LightScribe Support - OEM
A DVD drive is pretty much a DVD drive .
$79 OCZ Fatal1ty OCZ550FTY 550W OCZ Fatal1ty OCZ550FTY 550W ATX12V v2.2 / EPS12V SLI Ready 80 PLUS Certified Modular Active PFC Power Supply (I will find a use for the video card somewhere... i just thought it was a good deal.. )
HUGE issue with this. OCZ is a no-no. Good Brands for PSUs are Corsair, Antec, and sometimes XFX.
1. With exception to the PSU, yes.
2. Yes, refer to below, I probably won't even find the best. Your price is pretty standard for what I normally see however.
3. Not a question in my mind. You can do better for CS5 in the Graphics card department however for Premiere Pro CS5, and After Effects CS5. There is a part of the software called the "Mercury Playback Engine" and it uses nVidia Cuda for processing real time previews for up to 4K footage. Normally this would be reserved for Quadro FX cards, but their is a very simple way around this for most nVivia cards. Follow the directions below IF you get an nVidia card instead of your current ATI 5770.
http://www.studio1productions.com/Articles/PremiereCS5.htm
Case
http://www.newegg.com/Product/Produc...%20elite%20335
PSU
http://www.newegg.com/Product/Produc...-005-_-Product
Processor
http://www.newegg.com/Product/Produc...-851-_-Product
Motherboard
http://www.newegg.com/Product/Produc...-647-_-Product
Ram
http://www.newegg.com/Product/Produc...-311-_-Product
G-Card
http://www.newegg.com/Product/Produc...-391-_-Product
SSD
http://www.newegg.com/Product/Produc...-604-_-Product
Storage
http://www.newegg.com/Product/Produc...-185-_-Product
CD/ DVD
http://www.newegg.com/Product/Produc...82E16827106276
$1114.88 total with shipping (exactly)
Keep some things in mind.
1. Much better Graphics card with added features for Video Editing.
2. More reliable and more efficient PSU
3. Better and less expensive HDD
4. You didn't add shipping or the extra $0.99 onto those numbers. I'm pretty sure they'd come a lot closer if you had. Mine would be ~ $50 more expensive I think because of the Graphics card and the additional savings off your list.
That G-card really adds a lot onto the build. I didn't put Windows on there so that's another $100 and an extra ~$75 for the tool kit and everything. I'd say hit things where it really matters and swap your HDD and PSU for the ones in my build. If you want a graphics card that costs a little less than the 5770 and gets Cuda acceleration the GTS 450 is $140 and will get you there, but is not as proffered as the GTX 460.
http://www.newegg.com/Product/Produc...-394-_-Product
Another good way to trim off $50 would be to get the 60GB Agility 2.
http://www.newegg.com/Product/Produ...227542&cm_re=agility_2-_-20-227-542-_-Product
It has enough for the apps you listed plus a few more. With the saved money between the graphics card and the SSD, get another 1TB HDD. It's best to have more HDDs for editing video. I do mine like this:
Program - Velociraptor HDD (in your case SSD)
Save Files and Assets - HDD1
Capture Files - HDD2