Step by step directions for building a seed growing rack. - I did this last year with a similar rack & just have an actual grow light for the top shelf and use lower shelves as storage for pots, soil, etc.
Indoor Grow Lights: Two new and better choices, and bulbs, are now available. Old-line fluorescent bulbs are still cheap and easy to find, but bulbs, are up to 40 percent more efficient. Plants get plenty of light when grown within 2 inches beneath bulbs.