hey guys any $550 based on the BitFenix Prodigy case?
Here's a setup that I put together for ya (without optical drive if you're going all digital) which is a little over budget at $559:
http://pcpartpicker.com/p/1C4KU
Like the build but would tweak a few items.
I would get slower memory at 1600 with tight LAC and save $30 not use a after market cooler and save $30 assume the CPU comes with its own and is not OEM.
Don't expect dedicated graphics card performance from that APU though. I would try to get a FX-8350 and a dedicated video card but I appreciate that's pushing the budget to far
550 is a hard budget to get Mini-itx. You can go the APU route like Ilzy suggested. For that budget you should go for an ATX system with an AMD 6300.
The reason I chose the 2133 was to get the most out of the gpu portion of the apu's performance and considering it'll be pushing the graphics performance as far as it will, that's why I went with the aftermarket cooler and low profile RAM accordingly :)