best inexpensive software to convert ppt to flash?

Answer 1

Yes there there a lot of them.
http://www.freewareland.com/graphics/3165/
http://www.masternewmedia.org/2004/04/14/powerpoint_to_flash_conversion_tools.htm
http://www.newfreedownloads.com/find/convert-powerpoint-to-flash.html

https://www.npoweredpresenter.com/

google search with ppt to flash will give you more. Some are free and some other are shareware. So, you can try them for 30 days before you buy.