Lets see, for a beginner, here's a good stock list, to be added over several months:
about a month after live rock/sand add maybe 15 blueleg crabs, 15 scarlet hermits, and 15 snails.(don't forget to throw a cocktail shrimp in to feed them)
A few weeks later add(if your water is tested and stable) the first fish of your choice. Most go with damsels or chromis, but don't bother unless you plan on keeping them, they're pains to try to get out afterward and the damsels become territorial, clownfish are hardy and these could be added(I would recommend two medium false perculas, one a bit smaller than the other) if your tank is good. Over the next several months, you could add about four more small, hardy fish. The book I recommended earlier could tell you about which ones(gobies, hawkfish, maybe 1 dottyback last)