I also have a box fan (24"?) running at the slowest speed 24/7. The cfls are about an inch from the top of the seedlings. Light on for 19hrs, off for 5hrs. Soil mix is 75%FFOF and 25%perlite.
Some more pics.
625, 630 seedlings on (4/11/10)
633, 635 seedlings on (4/12/10)
610, 611 seedlings on...