Sorry if this isn't the appropriate group for this question... searching
Google for questions about setting up workshops always seemed to lead me
here...

We recently bought a house, and it still has the original garage lighting: a
single 60W bulb mounted on the wall next to the door.

I want to work in the garage, so I need to add some lighting. We live in
San Diego, and our winters don't usually get below 50 degrees, so I figured
I'd go with fluorescent lights.

The problem is that the walls and ceiling are all finished (sheetrock and
paint). Any thought of running the wires outside the walls sounds (at least)
ugly, but the idea of tearing out the sheet rock just to run wires around
the ceiling doesn't sound that appealing either (there are rooms above the
garage, so there's no attic or crawlspace to use).

I'm trying to figure out what my options are (after just buying a house in
San Diego, SWMBO would balk at the expense of just hiring a pro to take care
of it). Anyone out there done anything like this?

Any advice would be appreciated.

-Scott