:welcomera to the Sanctuary!
I would read everything I could get my hands on reguarding setting up a reef or saltwater tank. (you're in the right place to start!) My mistake was just jumping in head first listening only to one person's advise. Read up on sumps, lighting, different coral and fish care/requirements, maintanance, cycling, substrates, etc...then make your decision based on what you've learned, your cash flow, time, etc. Get many different opinions before making a decsion about anything.
But then again, you are on a saltwater site, so I say...go salt, go salt! :whstlr:
(just this one person's opinion)