Forum Moderators: phranque
Two popular open-source CMSs are Drupal and Joomla. I prefer Drupal, but it's got a somewhat steeper learning curve and isn't quite as non-tech friendly.
ExpressionEngine is a commercial CMS that looks pretty good. We're evaluating it now, but haven't done much with it.
Also - I wouldn't recommend Yahoo hosting. I had a horrible experience with them, (it was a years ago, but I haven't heard anything positive since).
Plus it's expensive compared to competitors. Sticky-mail me if you want recommendations.