what program is available for iMac user for website design?

wordpress maybe ? it seems like a good bid for web developers who don't wish to get down and dirty with pnp and jscripts blogo is another option

You can try www.squarespace.com They have a great set of tools and many use it.

Hello! As far as i know, Wordpress has proven itself very well, it is really good for this purposes. It is well suited for a blog, as the web site builder (http://www.webstarts.com) for making websites. Both of them, perform their functions perfectly and are easy to use. Good luck to all!

You can use any text editor for the job but you'll need to know how to code.

If you're not very tech savvy then Wordpress is the way to go.