Hi and :welcome:
I'd recommend setting up your tank as a FOWLR (fish-only with live rock). That way down-the-road, when you decide you want to get into corals, all you'll have to do is upgrade the lighting. Even if you never get into corals, personally, I've had better luck with maintaining good water quality and fish health in a FOWLR type setup over other filtration methods.
All you really need for filtration in a FOWLR setup is some good live rock, a decent skimmer, and if you like - some sand. You'll also want a couple of powerheads to provide plenty of circulation.
Take a look in our library at our beginner's guide - nice summary of the basic concepts:
http://www.reefs.org/library/newbieguide.htm
Also, get yourself a good book or two. I'd highly recommend
"The Conscientious Marine Aquarist" by Bob Fenner, especially if you're more interested in fish for now. John Tullock's
"Natural Reef Aquariums" is another good one - probably more geared to reef stuff.
You'll find them both, as well as some other good books in the beginner's section of our recommended reading list in the library:
http://www.reefs.org/library/reading/beginner/beginner.html
Also, be sure to check out some of the books in the fish section of the reading list. If you had to have just one book on fish, I'd highly recommend
"Marine Fishes : 500+ Essential-To-Know Aquarium Species" by Scott Michael
Fish books in our library -->
http://www.reefs.org/library/reading/fish/fish.html
Read and research all you can on how to setup and stock your tank before committing to purchases, and of course, ask questions here. It will save you a lot of money and frustration in the long run.
HTH and good luck with your new setup.