32a on a 550w ?
IMO a "good quality" 550w should have 38a or more available, and would be fine for all but extreme overclocking
A good 550W is likely to have even more than 38A like the 44a on the XFX Core 550W or the 40A on the Seasonic S12II-520W. I was simply trying to say that any PSU that is married to a GTX 560ti should have at least 32A on the 12V rails. I can definitely see what you're saying though: a 550W PSU with only 32A on the 12V rails is not indicative of a good quality PSU...
ahh what is a good PSU then if I don't have any additional fans? All I'll have is the motherboard, CPU, GPU (and whatever type of fans come with them). Motherboard will probably will be the GIGABYTE GA-Z77-D3H LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard, CPU i5-3570k, GPU GTX 560 ti.