What PSU would be good for this system?

Solution
Any good quality 300 watt or larger PSU would work. Here are several different choices based on your budget. Consider getting the larger if you intend to upgrade the GPU in the future.

https://pcpartpicker.com/products/compare/MnR48d,FQ648d,2tckcf/
Any good quality 300 watt or larger PSU would work. Here are several different choices based on your budget. Consider getting the larger if you intend to upgrade the GPU in the future.

https://pcpartpicker.com/products/compare/MnR48d,FQ648d,2tckcf/
 
Solution