Using forms and coldfusion?

Hi,

I'm building a website for selling boats, I would like to open for people to be able to put in their boats for sale and that this information they are putting in automatically comes out on the website.

I'm building the site in dreamweaver and was thinking about using the form function. Also, I'm unsure if coldfusion is the cheapest and best way to do this. I also would like to be able to verify that input information is ok to go on website.

Any ideas, help?

Thanks!