i'm going to have to respectfully disagree with both of the posters before me.
since you said you want to do it right the first time, the right way to keep a reef tank is implementing a sump, and purchasing an in-sump skimmer.
you will want power heads in the tank if it's a fish only or a reef simply because you want to keep detritus (uneaten food and fish poop) suspended in the water column until your filtration can remove it. it's just healthier that way.
you don't want a wet dry filter either.
you will need to purchase a HOB
overflow box. i would think something rated 300-500 gph
or so would do fine..
Eshopps PF300 Overflow Box, 10-75 gal tank, Single - AquaCave
now you will need a return pump to match it. something that after head loss will equal your overflow box. a danner mag 5
Mag Drive 5 Water Pump - AquaCave
should work fine.
now you need a sump. it's easiest to buy one pre-made, but that's going to be pricey.
Precision Marine Refugium
you can also make one out of a standard glass tank and just silicone in some partitions. it's pretty easy.
you will also need live rock. you can buy it uncured, from the ocean, or man-made dry rock.
live rock or equivalent has the surface area a strong bacteria colony needs to support your system. you know that these sensitive ecosystems rely on bacteria to sustain them, right?
you can add corals after the tank cycles.
as for the skimmer, you'll have to decide on a sump before i can link you to something that will fit it, because i don't know the correct dimensions.
and then there is lighting. what corals did you plan on keeping? will you keep stony corals, or just softies? will you keep clams, anemones?