Building a gaming PC need Suggestions!

[Magadon]

I am currently planning to build a new rig with the following hardware:

CPU - AMD FX-6300
MOBO - GIGABYTE GA-78LMT-USB3 AM3+ AMD 760G + SB710 HDMI USB 3.0 Micro ATX AMD Motherboard
GPU - Sapphire VAPOR-X 100365VXL R9 270X 2GB 256-Bit DDR5 PCI Express 3.0 OC
RAM - 8GB DDR3 1600
Casing - The CybertronPC Borg-Q GM4213A Desktop case (It's pretty large, and could fit pretty much anything I wanted.)
PSU - 500W 12V 49A
HDD - 1TB Desktop HDD
Monitor - ASUS VS228H-P 22-Inch

I'm going to be making this rig for gaming mostly, and would like some feedback on how it would preform. I'm planning on playing games like Planetside 2, The WItcher 3, and Dragon Age: Inquisition. Please provide any tips or tidbits you might have to offer, because I'm relatively new to working with PCs.
It would be a great help if the suggestions to make my rig better won't break my wallet. I'm on a tight budget as far as how much I can put in a PC right now.

Thanks and have a great day!

 

[Darkbreeze]

Especially when you can get almost as acceptable of results for like 800-1200 dollars less.