Here are some links to information and products on the net. Many of these are very helpful and informative. - Your #1 source for aquarium supplies, accessories, products and equipment. Guaranteed low prices and free shipping! Great prices on supplies among other things. I picked up an IceCap 660 retrofit kit for my tank here at a great price.

Some more great DIY info great for reef tanks.

Featuring Clownfish is a pretty good place to get fish, corrals, rock or sand.  I like the selection and their prices are very good too.  They also have a points program where purchases earn points that will get you reef rewards.

Reef Central online community

Reef Central Lots of glass and acrylic tanks, the quality on the small ones looks very good.

The quality on the larger sizes are unknown. 

Some other links: