U didn't list ur GPU which is usually the highest power draw so can't fully answer ur question. That being said, don't skimp on ur PSU. It will cause system issues and has the very real potential to fry out ur CPU and or GPU. Bronze certified a must at minimum, and depending on ur GPU, somewhere between 600-850 watt PSU is about norm for most game rigs. STick with a known company, and bronze or better only. Prolly looking $60-90ish for a PSU like I've suggested. Goodluck.