Forum Moderators: mack
To be nonest I would say go for modified templates because it makes your directry look different from the "out the box" version thousands of others are running.
Mack.
The downside? Many templates, particularly free ones, have a tendency to look a bit dated. Few are really eye-catching, high quality designs, but there are certainly many that fall into the "adequate" range and are better than what a graphically-challenged non-designer could do.
Templates often come in flavors like FrontPage or Dreamweaver to make them even easier to work with.