Use a PSU calculator like this: http://www.thermaltake.outervision.com/ to determine the wattage necessary for the entire system. The 560Ti will draw a max of 16.42A at peak usage, so be sure the +12V rail(s) can provide that. Then purchase a brand name PSU. Your links are broken, so I don't know what brands you were looking at.
As Scout says the links are bad, but some general guidelines: buy quality PSUs from the likes of Antec, Corsair, Seasonic, PCP&C, OCZ, XFX, Enermax, inter alia, with enough wattage to serve your needs. A 650W (or more) PSU with 80 + rating is what I'd look for.