Any card below (technically above in your list) a 560 doesn't have my vote. A 560 is the same thing as a 460
which was a decent card. I would say for 5 WoWs, go with at least a 560/560Ti but I would lean more towards
the Ti version. Do you have the option to get the 2GB version of the 560Ti? If so, I would suggest the 2GB
version over the 1GB version if there is little price difference and you can afford it.