Thanks for the input Joe. I have been running under the assumption that you want a power supply that will be running between 30-50% for true efficiency. Am I wrong or will this waste a lot of energy just idling with a load <70W (which this will do a lot being a simple nas for my htpc)? Also, 6 HDDs will be the max that this build will ever get to. Currently I only have 3 drives with the other 3 slots for future use.
I guess I need to know if a larger watt PSU wastes more energy than it's worth.
And if yes, are there really no quality sub-200w power supplies?