Currently in my current setup, I have a i7 920, 12 GB DDR3 ram, 1 GTX 260 Core 216, 1 dvd/cd burner, and a 1 TB hard drive at 7200 rpm(I think). I made the mistake of buying a PSU from a company not well-known and have been experiencing crashes. I tried a Rosewill 530W power supply and while it improved, it still crashed.
What size PSU should I look at getting? I'm leaning towards either Cosair or Cooler Master. Any particular PSU's would be welcome as well.