Never - EVER - cheap out on a PSU.
People spend hundreds on a CPU, and some even over a THOUSAND on a GPU...yet one bad PSU, you can risk it all.
I personally would be going at a PSU over 650 for that set up - you might want to go an AIO cooler set up later, maybe a second GPU, you'll need the watts.
That said - brand recommendations - Seasonic and Corsair are 2 you can bank on, XFX is another. Seasonic make internals for other manufacturers also, so a bit of research can do you well.
The best resource there is for PSU can be found here:
http://www.jonnyguru.com/