Its a good spec for the price. The Asrock does seem to have a few issues but these seem to relate mainly to overclocking which I assume you wont be doing even though the black editions are made to be overclocked. Its a lot of board for the money.
You could save a little on the PSU as a 550w would suffice (minimum).
With a self build I always find it useful to get as much of the kit from the same supplier especially the processor, graphics card, memory, motherboard and SSD/HDD as, if there are any problems later, suppliers cant start blaming each other. Parts like cases, optical drives etc are add ons and can be purchased from anywhere.
I assume you have also considered the added cost of the OS, screen, keyboard and mouse?
I use Novatech as I have found their after sales service is very good but others have their own favourites.
Good luck with the build.