Presentation Publisher
Hello Husker
I've been using Presentation Publisher for years and I love it to pieces
http://cmbsoftware.com/publish.htm
The main problem with it is that it's EXPENSIVE ($90.00)
Other than that, it's incredibly easy to use and allows a wide range of customized transitional effects and music. I haven't used another similar program but in scanning the available options at CNET and other big download sites it seems that there are several to choose from, most of which are much less expensive than Presentation Publisher. Some possibilities include Presentation Pro ($40.00)
http://www.ez-rom.com/prespro/index.php
and AMI Presentation Wizard ($30.00)
http://www.mindworkshop.com/alchemy/prspro.html
You will likely be able to find more choices if you search any of the big download sites such as CNET
www.download.com
Tucows
www.tucows.com
Major Geeks
www.majorgeeks.com
Rocket Download
www.rocketdownload.com
etc. etc.
with keywords such as "slideshow" "standalone slideshow" "presentation" etc. or any combination of those words.
Fortunately, all of the specific options that I've mentioned allow a "try before you buy" option and so hopefully you will be able to make a determination if one of these products truly meets your needs before you buy it. Be sure to give any program you try a thorough test by building a complete presentation (including a music soundtrack) with it and burning it to a CD, and then give the CD to a friend and have them run it on THEIR machine. This will help you determine how "universally friendly" the program is.
Good Luck!