I can't tell if you already bought your components or not (I'm going to assume you didn't, since it sounds like you haven't settled on a PSU)
Coolermaster isn't really a good PSU maker; IBall is unknown to me, I would expect it to also be pretty bad, but it maybe just an international brand. If you can get seasonic, Corsair, PC Power & Cooling, or XFX, those are all good brands. (Refer to this list http://www.eggxpert.com/forums/thread/323050.aspx
or individual PSU reviews before you buy other brands)
A good 550W will run any single graphics card, so it's up to your budget (though I can't say for sure if you are getting a good PSU). Nvidia's 670 is a good high end card, otherwise I think AMD holds the better midrange gaming cards this gen (7850, 7870, 7950), I haven't checked out the 550ti yet though (edit: A quick look at toms benches puts a bit ahead of the 7770, for a bit more, so it's a good buy between the 7770 and 7850 here in the states). Also, you could refer to this for guidance: http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-4.html
As far as your choice in CPU, if you mostly just game, you would be better served with an i3/i5/Phenom2 depending on your budget. The AMD FX chips aren't that great, Phenom2 965BE is a good budget CPU for AMD, otherwise go intel (don't look at i7 for gaming).