[Build Ready] Ready to pull trigger on $3,000 rig. Please confirm. (xpost from r/buildapc)

Long-time lurker, first-time poster. Now it's my turn up to bat. I live in Europe where we have less options and higher prices than you Americans. That said, I want to build a beast since I work on my computer over 14 hours a day, 7 days a week, doing some serious multi-tasking with everything from Dreamweaver to Photoshop and everything in-between all running simultaneously, plus serious gaming with Battlefield 3 and Skyrim, but also want as quiet a PC as possible, and do NOT want to have to worry about upgrading or buying a new PC for at least 3 years (I'm very lazy).

I posted this on r/buildapic and they suggested a also post it here because you guys are more into high-end rigs.

So considering the above, how does this look:

• Processor: Intel Core i7-3820 (might as well get the latest; over-clocking flexibility not a huge requirement for me)
• Motherboard: Asus P9X79 Deluxe (looks pretty solid; not too many X79 boards available from where I'm buying, these here are the only options)
• Fan: Cooler Master Hyper 212 EVO (read it's a solid fan; good price, but is it quiet?) (Cigajk has recommended I get the NOCTUA NH-D14 SE2011 fan for this budget)
• Case: Cooler Master HAF-X (looks like a solid, spacious tower)
• RAM: G.Skill Ripjaws Z DDR3 1600 16GB 4x4GB CL9 (quad-channel memory for X79, read anything above 1600 isn't worth the money)
• HD: Samsung 830 SSD 512 GB (read it's very reliable; don't want to deal with old-school spinning drives anymore)
• PSU: Corsair AX850 850W Modular (read it's a quiet PSU; 850W should be enough for future Crossfiring. Alternatively, I could get the Seasonic Platinum 860W Modular if it's quieter, let me know...) (GMNightmare has convinced me to go with the top-of-the-line Seasonic Platinum 860W)
• Graphics: PowerColor HD 7950 PCS+ 3 GB (read it's the quietest Radeon 7950;, should be enough for BF3/Skyrim)
• I've already got everything else (monitor, speakers, keyboard, mouse, etc.)

Does everything look OK? If not, what would you change and why?

Many thanks!