I waited a bit on this one to see where this would head.
I might suggest using iWeb if all you need is a static but professional LOOKING site (via cool templates) that isn't interactive nor dynamic. By interactive I mean comments, uploading by uses, ratings, forms that integrate date into a server side database or XML files. By dynamic I mean content that changes on each page load based on database or server side calls, i.e. you might not need a form, but you want to run blogs and you need a special page to display only your latest blog or two.
If you need to go interactive or dynamic in any way, then I suggest investing in RapidWeaver, which has great templates AND support for server side/database processing. And if that's true, there are a million topics on here where people recommend webhosts both free and low cost that offer PHP and MySQL database support. If you spend a little more, most webhosts these days make it very easy to install popular apps like phpBB forum, WordPress and others via web based management.
In a nutshell, part of your decision process is if you need an interctive/dynamic web site or not. And, of course, most people do - it's what makes the modern Internet what it is compared to its origins when static home pages ruled the day.
I do not suggest only Wordpress for a professional foundation oriented site, for the record. Too "personal" and non-professional, even if they make cool templates. Most users might not take a foundation too seriously, so you should register a .org and setup a complete site using iWeb or Rapidweaver, as I explained above.
jim