I'm currently looking for a new power supply to go with a a new case I'm getting soon, because the one I'm using currently is just horrible, but I need to replace the one I currently have. I am currently using a Rosewill Xtreme series 850W which is WAY overkill because I only need around 550-600W and I only use about half the cables. So I'm looking for recommendations for a 550-600W modular power supply and a fairly large case with a window to go with it. My budget would be about $100 for the case and $120 for the PSU.