Buying An Aquarium

[ImprezaSTi]

I am planning to buy a new 45-75 gal tank spending less than $400 on the tank with stand. I've noticed places like Petland and Petcetera have ridiculous prices on some of the tanks (includes a whole bunch of useless things that I already have or don't need).

I live in the NW area, the only store with a better selection of tanks and fish that I know of is Pieces Pet Emporium near McKnight Blvd. What stores can I get live rock, fish, inverts, skimmer etc. from? And for future reference, where can I get tangs and corals from (never seen a tang at LFS) ?