The advise I tell everyone (yet no one listens ) is....Get on a local forum and on RC. That way you dont have to believe everything your LFS tells you. You can have more than one opinion, and get good deals on stuff like corals, tanks, ect.
I have a friend that wanted to start a tank, I told him to get on our local forum. Instead he kept talking to me and the LFS. When my advice clashed with the LFS he believed them over me on multiple occasions and his tank has suffered alot. He still to this day buys everything from the LFS and still is not on a forum. (end of my rant)