A fuge is fun as a second tank and does provide a food source. Bioballs in a wet/dry setup will work too. They aren't as bad as their reputation.
The red sea reefer will be a good choice. It is a little more expensive then buying everything separate but it is a good route to go. It will make the whole setting up process
less overwhelming. All you will need is a light, skimmer and return pump and you will be good to go. I don't think the sump has an area for bioballs or a fuge, unless you turn skimmer compartment into a fuge.
If you want to set the tank up from scratch. Marineland is having a good sale on tanks. Ask you LFS if they can order you one.
Bioballs are used on large aquariums with messy fish because it will take excessive amounts of rock to provide enough surface area to support the tank. Lots of tanks on the show have sharks and stingrays so the perimeter of the tank doesn't have rock so the fish can swim without obstructions leaving less room in the tank for bacteria to colonize. Many of the tanks have the fake rock/coral decoration which doesn't provide lots of surface area, so a very large sump with media will be needed to support the bacteria. A lot of the tanks are themed tanks with decorations in the tank and little to no rock. Sometime they use bioballs to simplify things and save space.
Bioballs also keeps the dissolved oxygen high. Many tanks are built with a tall bioball tower just for the purpose of gas exchange. Sometimes aiming a powerhead at the surface or just having a skimmer doesn't suffice. The way they overstock those tanks they need to remove the CO2 in a pretty efficent way.