OK
I would say get an Enermax EG365P-VE or EG365P-VE-HC. Both of these PSU's are available as an upgarde for that case. A 300W PSU would be fine, but thats a big case and 350W would give you some expandability.
In case you are wondering at the difference between the 2 PSus, i think (check first) that the EG365P-VE-HC might actually be a EG365P-VE-Fc, which is the fan control model