Since GTX 760 is 170W GPU and you have Xeon in there, 600W range PSU would be enough for your PC, even when you OC your CPU/GPU. Here, i suggest getting any Seasonic unit, in 600W range. E.g G-650, Focus+ 650 80+ Gold, PRIME 650 80+ Platinum or PRIME 650 80+ Titanium,
You'll get 5 years of OEM warranty with G series PSU, 10 years of OEM warranty with Focus+ series PSU and 12 years of OEM warranty with PRIME series PSU.
If you want a proper power supply suggestion, one that will best suit you, you should provide us more information:
Relavence of features to you - Efficiency (shouldn’t be a problem unless electricity is expensive or long computer workloads), noise, modularity.