This $500 Build? Good/Bad?

Jaxem

Honorable
It's a good build for that price, you'll definitely want a bit more than 4GB or ram (i'd suggest 8). And also, you can get the FX-6300 for the same price as the 6100 right now, for an easy 15% performance increase. At this price range, this build will be better than an i3, which is what you'd probably be getting if you wanted to keep at $500 with all those parts. If you can jump up a bit and afford an i5, then it's better than AMD.
 
Definitely the FX 6300 [ it over powers any of the intel dual cores ]

The asrock 970 extreme 3 is the same price but has better overclocking potential than the ASUS LE

2 x4 gig of RAM

Corsair CX 500 psu $40 . Better than the junk thermaltake

Radeon 7850's are as low as $130