Looks pretty solid. Is the SSD going to be your only drive, or just your OS drive? I'd consider adding an HDD unless you're really frugal with your storage.
This should cover you as far as thermal paste selection and application:http://www.tomshardware.com/reviews/thermal-paste-heat-sink-heat-spreader,3600.htmlhttp://www.tomshardware.com/reviews/thermal-paste-performance-benchmark,3616.html
Edit: I'm guessing that you already know that's more PSU than you need. Are you planning to Crossfire later?