Before you go and purchase anything, You should take a look into the future and decide what you plan on keeping in your tank. Buying from the web is cheaper but watch the S&H charge it can wind up being more expensive. If you plan on keeping acropora's and clams I would suggest you start with at least 2 - 250 watt MH
and either PC
lighting. The sump with either a refugium combo or refugium sperate and deep sand bed works well. Does your tank have a built in overflow if not consider getting it drilled and install an in tank overflow rather then a hang on overflow. Also in keeping a Reef tank there is nothing cheap, that only winds up costing more in the long run. As Rocket said research, research and more research it can only help.