My favoriite books ( two part series) The Reef Aquarium Vol.1 by Charles Delbeek & Julian Sprung and Vol. 2. All the basics to advanced.
More advanced but very interesting and informative...REEF INVERTEBRATES by Anthony Calfo and Robert Fenner
Besides Canreef I like this site...
http://reefs.org/phpBB2/viewforum.php?f=1
Best of luck, the more you learn before you buy any thing the better.
Always get bigger and spend more then you want, it's a hobby of upgrading.
Dave