LG Burner is probably going to shit out on you.
You're booting off a 5400 RPM TB drive, it's going to be slow as shit. Get a very small 10k RPM or atleast a 7k RPM for booting and keep your TB for space.
Why not get an Intel dual core, they run better and are threaded better, and with such should be coming a Nvidia graphics card. If you really want AMD for some ass-backwards reason, get a quad core as they are threaded better.
Other than that looks alright.