Unless you need a pro voiceover, design work, or production value, this sounds like an easy gig. If you post what you want on any outsourcing site, you'll get lots of bids. You can also do it yourself with Camtasia.
Hi Musicarl - I ended up finding a website that allows you to pick project managers from a group of people who specialize in it. It needed to be professional with graphics etc, and my voice sounds like crap so I'm going to go with them. :)