Okay so I think i have figured out a way to power all of the electronics easily and without any chance of microsoft detecting it.
Basicly it would be something just like this:
http://www.mini-box.com/picoPSU-120-power-kitExcept it would not have motherboard power to it. ( I would make it myself)
The general idea behind it is that it is a completely seperate power source that in theroy could power more internal fans and leds to keep your xbox 360 running cool and looking cool.
It would have a plug on the back of the 360 that you would plug in another power cord to to power the extra mods.
I see it as really opening up what you can do as far as mods and still be able to play on xbox live.
Any thoughts?
You could also do a power switch on the side of the case to turn the leds and fans off if you want to for some reason.
loganbyers07