or you could get a GRI or blueline pump... which you wouldnt be able to hear even with your head in the stand.
i could give you standpipe directions, and pump recommendations once you figure out how much you want to spend, and how your going to setup the water flow to the sump, either a drilled tank or an overflow box.
If you still havent purchased the tank, do yourself a favor and buy a "reef ready" tank. It will come with an overflow and 1 or 2 holes drilled in the bottom. Will make the tank setup far easier and save you some time and hassle.