Ask HN: Best marketing videos / webinars for software today?

My team is trying to put together a presentation for a project management app - it's different from BaseCamp / FogBugz etc in that it is primarily a tool for performance metrics i.e. analytics and not a web based SaaS. It's for larger professional services firms, more specifically those engaged in a lot of fixed-price contracting. For example - auditors, architects, actuaries, some corporate law firms ...

Hence the video would be more about how the software could transform your organisation (a la salesforce CRM etc) rather than the typical walkthrough of a web interface with roles etc. Ppl on HN may think of this space as "enterprisey" but it's not necessarily. If anyone could recommend good videos or best practices that I could incorporate in creating said video, please do let me know.

Thanks in advance for the good advice HN!