getting +5v to power an usb hub

Hi there!
I need to connect 4 mics and a webcam...but my usb hub needs to be powered
Since i would use my hubs (i've 5 of them unused!!!) and they needs to be powered by +5v, I would get +5v directly from the inside of the wii (don't wanna use external power!!!!!!).
Is there a way to get +5v from the wii board?
I can solder very well, but my knowledge about electronic is very poor :P

Any idea? (pictures of teh board where to get +5v would be great....)

Many thanks!

You can get 5V directly from an USB port on the Wii.

Here's an image explaining the pinout of USB connectors.

just cut up a keyboard usb wire and use it