I'm just finishing out a new bathroom and my bride would like a full mirror
behind the vanity. This will require cutting a hole in the mirror for the wall
mount light. I know I can get a glass company to make the mirror and can think
of several possibilities for DIY as well:

1) Take a new glass cutter and score a circle, then try to tap it out.
2) Drill four holes with a ceramic/glass bit, score between them, and tap it
out.
3) Drill a bunch of holes on the outline of the hole and break the glass between
them.

Suggestions?

Thanks,
Doug