Wistia shares their video production secrets

http://www.appsumo.com/~5KZ1b/  

• Keynote & Screenflow on Mac
• Powerpoint & Screencast-o-matic.com (PC or Mac)
• or Snagit (PC or Mac)
• Prezi.com (for unique presentations)
• and this Resource Guide for background music

Also, some of the tools & checklists in Your First Webinar may be helpful depending on the style of video you're creating.