If you like a template but aren't in love with it, change it. Publisher 2010 offers you pre-set Color schemes and Font schemes you can apply to any template (installed templates only, not online templates).
A Color Scheme change in Publisher 2010 affects all the templates you're viewing.
Screenshot by J. Bear
When you select a template, a slightly larger thumbnail appears in the right side panel above the customization options. However, when you select a new color scheme or font scheme, it affects all the templates in the main window. This is rather convenient if you know you want certain colors but haven't settled on a template layout yet. Get a quick view all at once. Note that the colors affect only certain elements in the template. Some graphics will retain their original colors while other decorative elements, shapes, and text will change to match the selected color scheme.
Quirk. When you select a color scheme, it follows you around. That is, when starting a new project (even after shutting down and re-starting Publisher) the last color scheme you used will be the one displayed with all the templates. You can, of course, simply select the (default template colors) option to get your colors back. Just a quirk that bugs me.