You really dont need anything crazy, im not sure why people think they do. Pick up an enlight. They are well made and we have been using them for YEARS, to be exact 6 and we have never had a problem with one. You can for the most part tell how good a PSU is by its weight. They weigh good and they are MORE than you need. If you have a nice PSU like an enlight, with ur specs u could honestly have a 250 watt, If not less. HONESTLY ive been a tech for 3 years for this company and no one has a better reputation in the area.