SW Beginner said:
Just a quick update here. Emperor 400 filter added. Powerhead removed. (Should I have done that?)
Ther is nothing "wrong" with it, although I would not have done it. The biological filtration is unnecessary and in most cases, unwanted, if you have adequate LS and LR in the tank. The LS and LR will handle all the filtration for you. You could use the Emperor, for Carbon filtration every now and again and for water flow. Simply remove the biowheels, however, I would not do this until there is enough LR and LS in the tank to handle the bioload.
Is there a relatively easy way to remove the gravel and put in a sand bed? Any particular place I should get the sand? (Live in Tampa so I will probably be getting some live rock and live sand from Tampa Bay Saltwater.)
The easiest way will be to siphon out the CC and then add the sand. It is not necessary to use 100% LS, you can use mostly dry sand and seed with some LS, maybe 80-90% dry and 10-12% LS. The sand should be approximately the size of sugar grains, very fine sand. In the NE, Home depot sells Southdown Tropical Playsand, which is an aragonite based sand of the proper grain size. I learned a couple of weeks ago, the SD sand is actually mined/processed in Ft Meyers FL and they will sell it to you directly for about $20.00 for 1 ton or $10.00 for 1/2 ton. Very good deal indeed! If your interested in the name and phone number of the company let me know and I'll get it for you.
Additional question: How does one go about adding a sump to the system?
It's fairly easy, once you get the tank for the sump, you will need an after market overflow box. Add the box to the tank, plumb to the sump, start the siphon, turn on the return pump in the sump and off ya go. It is, of course, a little more involved than that, but that gives you a general idea. When you get ready, let us know and we'll get a little more in depth.
Perhaps one better question would be is there any particular book recommended for idiots like me who are just starting out into the world of aquariums. 'Saltwater aquariums for Idiots' perhaps?

There is a
S/W Aquariums for Dummies but I cannot speak to whether it is worth the money or not. There is a suggested reading list in the getting started section...
http://www.aquariumadvice.com/viewtopic.php?t=17