mirrored medicine cabinet with electric receptacle for plug
I am looking for a simple relatively small mirrored medicine cabinet. I want one for each side wall where the vanity is. (I will have pretty mirrors for over the sinks). The main purpose for them is to hide the electric shaver and toothbrush, so I am looking for electrified ones with receptacles/plugs. I have found Robern, but are there any that are cheaper? I don't need anything fancy, like the mirrors on the inside, etc.
Is it easy to buy an inexpensive mirrored medicine cabinet and add the receptacle later? Or is it hard to cut into the metal/plastic/wood?