Looks like an Icecap ballast running 4 VHO bulbs (Pre-T5HO bulbs). First thing, I would definately recommend rewiring the lighting setup so it isn't so dangerous. I would mount the ballast on the outside/back or top of the canopy and just have the wires for the lights come through little holes drilled in the back so you keep the ballast/power connections on the outside of the tank so they wont corrode from the saltwater.
Next, your lighting would be considered low/medium so that would limit you to softies and LPS corals and low light SPS corals like Monti's which is fine for a beginner.