for the record, "bubbler things" do not do much of anything and don't really have a place in a marine tank (except to drive certian types of supplemental filtration). your whisper filter is also completely uneccessary, but can be used to create a flow in the tank. the basic equipment you MUST have for your marine tank are a powerhead, strong lighting of at least 3-8 WPG depending on the corals you want, and a protein skimmer.
also, FTR most reef fish are aggressive to some extent, as in a coral reef they claim a spot on the reef for themselves and defend it from those who try to invade it. some good common fish that are realtively peaceful are clownfish (they do not need an anemone at all and many don't even know how to use one if they're tank bred) psudochromis, gobies, firefish, most blennies, and some types of dwarf angelfish. be VERY sure to thoroughly reseach any fish you plan on keeping, as most marine fish need special care and even clownfish will need a good knowlegde base on your part for you to successfully care for them.
some good inverts would be most kinds of snails and shrimp, some crabs (be VERY careful to make sure the crab you want is not one that will eat corals/fish!). as for corals, mushroom corals,leather corals, and most colony polyps are good for begginers and need only about 3 WPG (which would mean you need to have at least 90 watts of light over your tank.)