I want to run the ps eye camera for my raspberry pi model b+. It is rated at 5v 500 mA . The question is , is it wise to directly connect it to the provided usb? I am using the pi to make something portable, so using a usb hub will not be possible. I know that I can just pull power from the same source as the one powering the pi, but I would like to know if its possible to connect something that requires that kind of current.
Also(Off topic) The Pi has mounting holes. I am using a breadboard for my project. I want to know the name of the plastic tubes that come that allow you screw things. The idea is to place the PI a few inches above the breadboard. Do any kinds of mounts come that allow you to screw things(that are breadboard compatible)?