Dude it is totally fine, people here are trying to cover their own asses.
129 watts max draw on the 260x full load
100 watts for the cpu 130 maybe if oc'd
60 more tops for the rest of the setup.
You have a sufficient psu, I'd recommend a corsair cx 430 and you could overclock the system to the moon and not stress the psu, the thermaltake is more than enough by a wide margin, I just can not recommend one as my experiences have been poor. But if you disregard my bias the psu is more than enough even for overclocking. I personally just wouldn't buy this psu though it can easily do this job for you without worry.