Icstorc - a few of us are totally new here, including me, and I know in my case I haven't even had a chance to check out all of the sections yet. Chronicles is new to me - can you please point me and other new members to where to find information on setting up a chronicle? Sounds interesting.
Arreola - asking what corals to add is always a tough question for me to give an opinion . I started out with zoas, mushrooms, some lps (Frogspawn, Torch - the Euphyllia species corals), and an acan and a toadstool leather. I also had some GSP (green star polyps) already on my live rock, as well as some nice red mushrooms.
Keep in mind spacing of the corals - I eventually had to give away one frogspawn that grew to over 10 heads, and my big acan, as they were stinging nearby corals as they grew bigger. Some corals are "peaceful" and some are "aggressive", or "semi -aggressive".
Some of the easy relatively peaceful corals to start with are mushrooms, zoas, GSP, and leathers. Then you have to leave room for growth, as these things will grow and multiply.
I made a few mistakes in coral choices, but it's difficult to predict what will happen when things grow close to each other. Some get along well, and others use stinging or chemical warfare to try to keep other corals away from them. My Frogspawn even stung me a few times, and at that time I didn't even know that they could sting people too!
The lights in the RSM are capable of keeping just about any coral. Even the more difficult SPS types can be kept under the stock lights, if they're kept on the top parts of the rock. I've seen several stock RSMs with a lot of healthy, growing SPS (even Acropora) in them. I've been trying to keep SPS and have had mixed success so far with the Acropora types - some have done well and I've lost others. Of the SPS types the easiest are the Montipora species - there are encrusting types (grow over the rock surface), branching types such as the M. digitata types, and the M. capricornis types that form platelike structures. All of my Montipora types are doing excellent and growing well. By the way - the SPS types, especially the Acroporas are usually recommended only for mature tanks with excellent water parameters and proper amounts of things like Calcium and alkalinity.
I see I'm getting too wordy again, so I'll shut up and let others tell you what they started out with! I am not an expert on anything!