I use a sunpod over my 28 jbj.
You will need at least one if not two powerheads if you plan on having a reef tank.
Think using a skimmer and or a
UV sterializer is a waste of money. You get better results doing water changes.
For stocking ideas I would chose 2 or 3 fish that I really like such as a midas blenny, royal gamma and clown fish. I tend to understock (I havae 4 small fish in my 55 and consider it fully stocked). Always put your most peaceful fish in first.
I usually get my rock off craigslist or local forums.