Hello Chrisb
I'm not too sure how old this post is or if you decided on a product. I just joined this group to assist member in my multi-media group. I am an expert and power user building shows and have been doing so for quite a few years...for business and pleasure.

Three products you can consider are Photodex Proshow line of products.
Cyperlink's Media@Show and Memories on TV. My personal product of choice is Proshow Producer.

Used in conjuction with my AVS membership (for their line of products for audia and video) I can accomplish practically anything.