OK. According to the information and calculations I came up with (thanks to all of the good information you all pointed me to), it looks like I need a 12VDC power supply putting out at least 45 watts for my 128 (about) LED setup. (The LEDs come with resistors to get them to work with 12VDC)
So, where do I get a power supply for that? Could I simply use a PC power supply? If so, I could use the 12VDC from it, or better yet, could I use the 3.3VDC and not need resistors?
Here is an example of the specs of one PC power supply. Does anyone know if this would work?
