Building new gaming + 3D graphics PC - Help!

[Hyperfluxe]

APPROXIMATE PURCHASE DATE: Within 2 weeks.
BUDGET RANGE: 1500$-2000$

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT:
Heavy gaming, AutoDesk Maya (3D Animation and Modeling and Rendering), Photoshop, video editing, programming, music encoding and editing, and everyday uses like surfing and watching HD movies.

PARTS NOT REQUIRE
Keyboard, mouse, monitor, and speakers.

PREFERRED WEBSITE(S) FOR PARTS:
NCIX only. If there is a cheaper price elsewhere in Canada, I can price match easily using Shopbot.

PARTS PREFERENCES:
None.

OVERCLOCKING:
100% sure. Heavy overclocking.

MONITOR RESOLUTION:
1920x1080.

Case:
CoolerMaster HAF 932 Full Tower Gaming Case
http://www.bestdirect.ca/products/182299/C...ER/RC_932_KKN1/
139.79$

CPU:
Intel® Core™ i7 930 Processor (4x 2.66GHz/8MB L3 Cache)
http://www.filtechcomputer.com/
315.99$ when available with NCIX and price match with above link.

Heatsink:
Noctua NH-D14 NF-P14 140MM & NF-P12 120MM Fan
http://www.ncix.com/products/index.php?sku=47090
89.99$

Memory: I need help for RAM. I want the best bang/buck 6GB combo. This is what I found, and it has great reviews, but I am unsure.
G.SKILL F3-12800CL9T-6GBNQ 6GB DDR3 3X2GB DDR3-1600 CL 9-9-9-24
http://www.directcanada.com/products/?sku=...facture=G.SKILL
166.92$

Video Card:
ATI Radeon HD 5850 - 1GB DirectX 11 Support
http://www.infonec.com/site/main.php?modul...l&id=449815
289.99

Motherboard: This is another one that I need major help with. I want a good board that can overclock very well, but I want best bang/buck. Currently I chose the P6X58D, but it's very expensive. I also saw the X58A-UD3R which has almost the same features as the P6X58D, but it's 100$ less expensive. That looks like a good board - opinions?
ASUS P6X58D Premium -- Intel X58 Chipset CrossFire and SLI Supported
http://www.agileelectronics.ca/prod_detail...6X58D PREMIUM
308.40$

Power Supply: Here is another one I need help with. I can spend an extra 40$ and get the HX750W PSU, which is more efficient than the TX750W, has modular design, and is just overall newer and better. Is it worth it?
Corsair CMPSU-750TX Power Supply SLI Ready
http://www.directcanada.com/products/?sku=...facture=CORSAIR
111.46$

Hard Drive: I definitely need help for this. I want a really fast drive for the OS/Programs, so should I invest in an SSD? How much memory would I need on an SSD to fully store the OS and programs, and is the high price worth it?
SAMSUNG Spinpoint F3 HD502HJ 500GB (Two of them for RAID 0)
http://www.newegg.ca/Product/Product.aspx?...SUNG-_-22152181
56.99$ x 2 = 113.98$

Optical Drive:
Samsung SH-S243D/BEBE 24X Black DVD Writer SATA OEM
http://www.swiftgamers.com/ProductDetails....e=SH-S243D/BEBE
22.66$

Operating System:
Microsoft Windows 7 Home Premium 64-bit OEM
http://www.directcanada.com/products/?sku=...cture=MICROSOFT
105.79$

Sound Card:
Asus Xonar DX 7.1
http://www.agileelectronics.ca/prod_detail...d_id=XONAR DX
84.39$

TOTAL PRICE
1749.36$

So what I need help with is choosing the right RAM and motherboard for my build. I also need help with my hard drives, should I go for SSD? Is it worth it? And about the power supply, I'm just wondering if it's worth the extra 40$. Thanks for reading.

 

[Shadowssong]

All links are broken, try fixing them. If you have the budget for an SSD, get it, and 80gb would be enough, but if you can get 100+.

 

[Dan_D]

Your choices are pretty solid. I'd drop the sound card and maybe go with a different video card. (A higher end card, possibly a 5870.) Unfortunately AMD GPUs tend to be somewhat problematic with the 3D rendering applications you mentioned. I've seen numerous problems with the viewport while working in these applications.

What's sad is that in the past I've seen more problems with the FireGL cards than anything when it comes to drivers. I've found that when it comes to professional use, NVIDIA's drivers are vastly superior to AMD's. That sucks because you'd have to deal with a slower card until Fermi is released.