Well for starters you really don't want to start a salt water tank unless it's atleast 50 gallons because it's harder to keep the tank levels good but it can be done just harder for a newbie. OK I'll give you the setup I have and I was a newbie. As far as fish I have 1 niger trigger, 1 huma huma trigger, 1 undelated trigger, and 3 damsels.
90 gallon tank
2 300w heaters
1 power head ( not really necessary for you)
2 bags crushed coral 42 pounds of live rock
Emperor 400 filter
2 overhead lamps
saltwater test kit for ph and nitrates
salinity tester
40 pounds of Omega Sea Salt (not all the salt went in)
20 pounds live sand
As far as setting it up there is so many ways to go about it but you just need to make sure the tank is cycles before you add your puffer I got a few damsels and the live sand with the bacteria for a partial cycle.
Well That is part of the info you asked for and I am still only a couple months into saltwater so I'll let someone else give you some info on setting up because I kind of made my setup a hassle lol. Good Luck you'll be happy when it's done.
Matt