Well i think the circulation will definatly be there with those two figures you provide.
One thing you might want to consiter is a larger sump. Maybe a 55 gal
sump. The reason is that should water flow stop in your tank the water will backflow (unless you use a check valve) into the sump until air can enter into the return lines (usually the returns are lower in the tank than the drains). A 30 gal
sump really does not give much room for the water level to drop before the sump is full and overflowing.
What are you looking to keep in your tank? The types of corals you want to keep will drive our suggestions for lighting. What you describe so far sounds like very good all around lighting. What are the dimentions of your tank?