This is now my primary machine for coding; it is super fast (12 sec boot time in Win 7 64-bit) and quiet.
In retrospect, I should have gotten a more powerful CPU that supports overclocking since the MSI mobo does a nice job at configuring voltage, fan speed, frequencies, etc.
Update: I replaced the Cool Master CPU fan with a Corsair H100i liquid cooling system. CPU at idle is 29 degrees celsius, and when all 4 cores are at 100% it is 53 degrees celsius. I price matched the liquid cooling system, and got it for $50 (original was $110).
I got the CPU and motherboard as a bundle for $247 at Fry's, so I saved $60 had I bought them independently. I absolutely the red/blue lights on the fans, and the red cathode light.
Originally, the PSU was a Raidmax 730Z, so I swapped it out for a Corsair RM650 that's more reliable ($78 from Fry's), and completely modular (new pics coming soon).
One of the best deals was the 120 SSD for $60 (I bought 2 of them during Black Friday in 2012 and had been saving them until a moment such as this). The cherry on top was the ultra wide 2560x1080 monitor for $400 during 2013 Black Friday from Amazon (it had been hovering around $550 weeks before). This is absolutely crucial as a developer, and soon I want to get 2 more monitors to complete the full immersion effect.
Nov 2013: "I'm waiting for the graphics card prices to drop after the Litecoin frenzy to get a Radeon HD 7850 or better."
April 2014: "I just bought the Radeon HD 7950 OC'ed 925 MHz for $210 from Newegg."