A solid build under $1200

Hey guys, I need your help on putting together a system. I won't be doing a ton of gaming with it but I will be doing some from time to time. It'll mostly be used for photo editing, homework and normal day to day tasks. I'll have it hooked up to my TV and Surround sound so I've thought about using it as some sort of Media Center down the road but I don't know too much about that stuff. I'll need everything else other than the Monitor/Speakers.
Thanks!

Approximate Purchase Date: More than likely this weekend, but definitely sometime in the next week or two.

Budget Range: <$1200 Total including OS and wireless keyboard/mouse.


System Usage from Most to Least Important: I'll be using it for some games but mostly just Web browsing, photo editing and homework.


Parts Not Required: I don't need to purchase a monitor or speakers. I'll be hooking the tower up to a 55" 1080P LED tv and 7.1 surround sound. I'm sure this will make a difference when it comes to graphics/sound cards.


Preferred Website(s) for Parts: Newegg.com



Parts Preferences: I don't really have a preference, I've used ATI and Nvidia in the past and been happy with both.


Overclocking: No


SLI or Crossfire: No



Additional Comments: I'd like the computer to be quiet when I'm not using it, but I'd rather have something that runs cool on a consistent basis if I had to choose between the two.