[Turk]

One of the neatest ideas I have see in garage lights was the placement of fluroscent fixtures into the side walls.

If your garage is not drywalled yet, you could install 4 (two on each side) fixtures with 4 bulbs in each at about 2 feet of the floor.
Since they are recessed into the walls they don't take up any space but provide great illumination for working on the car and cleaning the car etc.

TURK