If you're going to add a second GPU or heavily OC both the CPU and the GPU then I'd go to at least an 850, but for what you have now a 650 will be fine. IMO for the small cost difference to bump it up to a 850 it makes sense to future proof your self.
Sounds good for awhile all i will overclock is the gpu. But down the rd i will be doing more and swap out the psu i suppose . As long as it withstands hours of gaming im ok with that. Thanks for the response