Sal****er tank maybe?

I posted this at aquaria newsgroup told me to post here for more salt water
info.

basically i have room for no more than a 20 gallon to 30 gallon tank in my
place, would that make a half decent tank?

also please see my questions below, if anyone has any more info please let
me know.

hello all,

i am a beginner to aquariums. I have a small 10 gallon freshwater tank that
i love, but I have a fascination with the salt water tanks, cause i thinkt
he fish are beautiful.

i am interested in starting a sal****er tank and wanted to get ur thoughts
on the cost and care of one.

I have a small apartment and not much money and i have been told that salt
water tanks are expensive and alot of work. I dont mind alot of work, but
its the cost that has me.

question 1, whats the minimum size of a salt water tank? Also are there any
special tanks u need to get, like glass wise or what not or are tanks
generally sold at stores for freshwater and sal****er?

question 2. i have been told that the filter system is every expensive, is
that true?

question 3. how much work is involved in a daily/ weekly basis.

question 4. how much money total do u think it would cost monthly?

--
Mike