Need Advice on Missing Parts

Hardware Hub Build a PC
1

partsi got the ssd, mobo and cpu. 

Intel i4770k

Asus Maximus VI Extreme

Samsung SSD 840EVO 250GB

need advice on other parts.

2

What is your budget and what will this build be used for?

3

a little bit of everything create music, video edditing and gaming of course.

thankz for the help bro.

4

Budget!

GPU: GTX 770.  May change depending on budget.

PSU: If planning to SLI/Crossfire, get a good quality 750w PSU.  If not, a good quality 550w will do.

Noctua NH-d14 for the cooler

2x8GB DDR3-1866 for the RAM