balistik1- What are you looking to keep. If you only want LPS, soft corals, mushrooms and the like, what you have is enough. If you are looking into SPS corals then that is when your lighting really becomes important.
Do you have any braces in your tank like mine does? If so I would recommend the same solution I have. 2 250W DE HQI and 4 VHO .
If you don't have the brace then I would suggest 3 MH 250W DE HQI and either 2 or 4 VHO (your choice). 2 would be enough but 4 would make it shine so nice.
Come up with what you want to keep and then figure the lighting to meet the demands. HTH.