You are in a better situation than me. I have a 400 MH I have to use for flowering. CFL is the way to go to veg, depending on how many plants you are growing---you can also use the 4' shoplights. I am vegging under two shoplights and will flower under the 400MH. If you veg under CFL and then put them under the HPS to flower they will EXPLODE!!!!
