SW is expensive to do right. I wouldn't even attempt it unless you have a thousand bucks to start.
I'm doing a Red Sea Max right now, and at this point I'm at about $2,000 in and I have no corals or fish yet.
You need a lot of test kits, RO/DI or distilled water, salt, sand... It adds up. I expect this tank to run about $3k when it's done, and it's only 34g!
but if i do get one it would be the bare minimum at first.
probably next summer after i save up for my 91 camaro z28.
nate