Thanks guys for the responses.  I noticed, though, that a skin I bought was able to implement and entire slide show function by just adding a Text/HTML module to the target pane and then importing a .xml file into the module. So it appears that you can add some custom functionality and styling to your page without a custom module. Then there's also the Format Code Block option of the RADEditor that seems let you paste HTML, VB and whatever .

So I'm wondering what the limitations are of these options and when you should finally throw in the towel and build a custom module.

Thanks for your help.
Steve