If you aren't planning on overclocking ever then you don't need a k-series processor or a Z77 motherboard.
Also, if you don't already own the card, the 560ti has been basically superseded at its price point, meaning it's not that great a buy any more (though still a nice card).
Agree on going for 8Gb of ram, it's really cheap and there's not a good reason not to.
As for motherboard manufacturers, I'd throw ASrock into the mix as well as others mentioned. They are pretty good value compared to some of their competition, and good quality too.