I'm planning out my basement work shop (14'x25' ) and am trying to figure out how much lighting I need. I remember reading an article in a magazine a few years ago that showed a picture showing the height from your work bench to the ceiling and the spacing between the light fixtures and how far from the wall they should be. I was thinking of using a drop ceiling so I was leaning towards the 4 tube 2x4 fixtures but they are pricey. Any suppestions?