The first thing that absolutely HAS to go is that cheap POS power supply. The key to a stable system is a quality PSU. That PSU is anything but a quality unit. A quality 400W - 500W PSU would be plenty for your build. You need to look for a unit with active PFC, at lease 80 Plus certification, and high Amps on the 12v rail. This unit would work great for the above components:
An AMD build would probably be a much better idea depending on your budget. Please edit your post to include all the information in the "How to ask for new build advice" sticky so we can build you a good system for your intended use and budget.