I tested the CM 450watt with bigbadbns and it's a nice unit to look at and the thing is silent. The coolest part is that it tells you how much power you are consuming, which helps you understand the limit of the PSU thus provide you the ability to prevent overusage of power and the potential shortage of your hardwares. I am not favoring it because I work for CM. It's because of it's 75%efficiency over the standard 60-70% and the quietness of the unit. Anyways, go with what you need and want. If you are happy then that's all it matters.