Forget the wet/dry setup w/ bioballs, that's outdated stuff from the 1980's. A sump is another smaller tank under your tank that adds to total water volume, is a place for a skimmer, heater, a fuge, a return pump, etc. and would need to be plumbed to your main tank. You would either have to have a reef ready tank, drill it, or use an overflow to get water flowing down to the sump. You can also use an HOB skimmer on the back of your tank if you don't use a sump.
There are any number of good skimmers including but not limited to Tunze, Deltec, Octopus, Bubble King, etc. and it all depends on your price range. For lighting for TBS rock and fish only you could use something like a Nova Extreme/Extreme Pro T5HO setup as TBS rock and fish will not require high PAR/intense lighting, and for flow you could use something like several Koralia or Tunze powerheads or even a Vortech pump (good flow is important). I would also get a reactor or canister filter or power filter and run a good quality carbon like Seachem Matrix or Rox .8 If you are going to have a lot of fish I would get a skimmer rated for up to 50% larger than your size tank.
