I set a tank up in my classes back in August. If you are planning on starting, I would definitely recommend getting it wet before summer - it takes a while before you're able to add any life. I know my kids asked all the time when something was actually going into the tank.
When I was doing research, one of the best things I watched was BRS's 52 weeks of reefing. The first few are all about setup and are really informative. Later in the series is a lot about dosing and stuff that you won't need to worry about until down the road. If you find the time (which I know is very difficult this time of the school year) take a few minutes to check out the BRS series: .
Disclaimer: I did not watch all 52 - don't feel overwhelmed that there are so many!