Welcome to TRT!! Best thing you can do in this hobby! So many people here willing to help. You're gonna like it here.
You sound like you're really done your research. All good choices.
I have that same exact tank (Oceanic 72 bow). LOVE it. Very good quality tank!! (I recommend getting the Oceanic stand with it. They won't honor their warranty unless that tank is on one of their stands).
Also...don't pay extra for the canopy for it (can't remember if it comes with it...or if it's extra). Once you add your own lighting, it becomes useless.
I say, for a beginning...just start out with a sump. If you decide later you want a refugium...doesn't really cost much money/energy to switch. Early on, try to keep things as simple as possible. This hobby can get pretty technical/confusing REAL quick!
My first and formost recomendation is to read the FAQ like Tim suggested:
http://www.thereeftank.com/forums/fa..._reef_articles
and get some books!! Here's some really good books the people at TRT have recommended. (my personal favorite is Aquarium Corals by Eric Borneman. Covers all the different types of systems, equip, corals, etc. Good book). ANyways...check them out. Give you something to do while you're waiting for your system to cycle:
http://www.thereeftank.com/books/
again...Welcome. Always glad to have new members. Looking forward to hearing more from you. Ask LOTS of questions!!