I was originally going to put in a bunch of 4' fixtures but then noticed going down the aisle at HD today that you can still buy the ceramic type fixtures that fit on top of a electrical box and use a regular light bulb. These things were cheap at about $1.50 each.
Here's my lighting configuration FWIW.
I had originally considered 4' florescent boxes for my 1100sqft garage. I bought four, four foot square boxes (4 2' tubes) and four, eight foot long boxes (4 4' tubes) off Craigs list. None of the boxes came with lamps, though were tested and working. When the electrical inspector came to inspect the wiring he sarcastically said: "Think you got enough lights here?" I had six ceiling lights on two switched circuits. I said: "No, I'm planning on adding more." I like light when I'm working on a car.
I've used them in the past a always like the light they put out. I was going to overkill on the light. As I was musing over installing these boxes a friend came over and mentioned those little ceramic light bases. He suggested using those, along with CFL's would cost less than what would be needed to install the flourcent boxes and buy good tubes for them... as well as cut down on electrical costs. He explained the downside to the CFL's were that that had a small "warm up" period before they put out full light.
I went down to HD and purchased nine of those bases along with CFL's and installed them. It took less time, money and hassle than the long tube florescent boxes. The first time, at night, that I switched them on I was impressed. It was like daylight in that garage. It's been over a year now and I'm very satisfied with them.
One of the long 8' tube florescent boxes was mounted on the end of one of my shelves in the maintenance bay. It shines light where the engine would be being worked on. A second box 4' box is mounted on a cheap Harbor Freight hand truck. I can move that box anywhere I want where the hand truck will fit. It's nice to have. I use another of the long tube boxes (4 4' tubes) as a source of light when I'm working on the underside of the vehicles. I slip it under the vehicle when it's up on jack-stands. It easily bathes most of the underside in good light and I'm not always staring at the drop light.
I also was going through drop light bulbs (Heavy duty...not the normal bulbs) like water as I am always dropping that dang light. I switched the bulb to a CFL... and haven't had an issue since. The drop light is now much more robust and gives a more even and usable light.
I have 10' ceilings and built a tire storage rack over my workbench. On the underside of that rack I have installed three of those ceramic bases and CFL's that give great light over the workspace.
I'm so glad my friend mentioned those little ceramic bases... a year after the install was finished I'm still glad I made the switch from the long tube boxes.