I have been following your thread about some of the challenges you face integrating tech into your students' curriculum. It seems like the community has been able to offer some good feedback and resources! I'm sure eventually it will work out for the best for all involved.
However, if your admin or fellow teachers (or parents - however unlikely) were to read some of your comments, it might raise concerns or hurt feelings. This is an open forum and anyone can read your comments. Just something to remember as we navigate this amazing world of web 2.0.
Best of luck!
With your work in Digital Media at your Day School, I recommend you take a look at Wiziq's virtual classroom and authorstream's power point presentation platform. Both are web based platforms, have a bunch of features and free basic service. Here’s a public class recording you might find of interest.