Hi,
look at the sites
www.reefs.org www.reefcentral.com
They are both excellent sites with heaps of great information.
For a reef, I can give a few peices of advice:
1) Get good equipment in the first place, because eventually you will anyway. This goes for:
1) lighting-DO NOT SKIMP!!!! VHO, PC, Metal Halide or a combination thereof. Depending on what you want to keep, get as much light as possible. I know some people who keep 400-watt Metal Halides plus VHO over 55-gallon tanks but then again this is excessive for most reefs. 175-watt Metal Halides or 4x96-watt PC's would be enough.
2) skimmer!!! Do not skimp on this peice of equipment! THe best way to filter the tank is without a doubt the natural or Berlin method. Buy yourself enough sand to cover 4-5" at the bottom, as small diameter grain size as possible (I use 0.5mm). Seed this with some live sand, buy some live rock (about 70lbs would be fine but this can vary s great deal) and that is the basis of your filter. To get rid of organics, buy a big, chunky skimmer. I live in Australia and we do not have all the same brands as you do but from speaking to people over there the brands to check out are ETS and EuroReef. Get a skimmer rated at twice the tank capacity (in your case, rated at LEAST 110gal).
3) Make sure you have adequate circulation, about 5 times the tank capacity per hour is good.
4) Sit back and watch the reef flourish!!!!
Regards,
Tom