is this possible with max?

Hi!

Thinking of learning MAX or Isadora for doing this:

I would like to be able to controll:
- track motion to controll midi and output midi
- track motion to controll video, as for example the video changes according to the audience looking at it. interactive video.

is this possible with MAX without having the cyclops (its over my budget with both Max and cyclops)?

Ive heard Isadora is easier to learn. should I go for this instead? Is it possible with Isadora?

What would you suggest?

Thanks a lot!