Video made from a powerpoint presentation

I am spear-heading a not-for-profit project to raise awareness of the challenges and needs of breastfed children with severe, life threatening illness. There is no research or support available. I need a really well-made video to showcase our very brave children. I'm not sure what you'll need, but I have created a powerpoint so far to share the stories of nearly 20 children. I'd like this made into a video, ideally with a track (permission will be needed presumably from record label).
I have a powerpoint but the file size is too large, as it contains over a hundred photos. Please give me a quote and arrange for me to send the presentation separately.
Thanks