First Build to get into PC Gaming slowly

Hi,
I'm thinking about getting into PC gaming but i don't want to spend a lot of money on a PC just to make sure I actually enjoy it. Right now I'm playing on LoL so i figured I won't need a great video card. I just want to make sure all these parts are decent for what i am looking for and are compatible.

Apevia X-TRP-BL X-Trooper Mid Tower Case (54.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

Asus DRW-24B1ST 24X Internal DVD Burner (16.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

AMD FD4300WMHKBOX FX-4300 Four-Core 3.8GHz (119.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

Thermaltake TR-500 TR2 ATX Power Supply - 500W, 120mm Fan, Active PFC (34.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

GIGABYTE GA-970A-DS3 AMD 970/SB950 AM3+ FX ATX Motherboard (64.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

Kingston HyperX 8GB Desktop Memory Kit - DDR3, (2 x 4GB), PC3-12800, 1600MHz (34.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

and

MSI Radeon HD 6670 Video Card - 1GB, GDDR5, PCI-Express 2.1 (x16) (79.99)
http://www.tigerdirect.com/applications/SearchTools/ite...

Thank You.