Marking clips while live Digitizing

Ok so i have a subject coming in that is going to give a 3 hour presentation. He will be fallowing a power point slide presentation that we will link and sync the video to in post.

So as he does his speach i would like to digitiz him live into computer threw PProCS2

I would like to be able to make when he changes slides as i digitize without stoping the digitizing process or the speaker. Does anyone know of a technique in PPro that allows me to leave markers while live digitizing?
So i can go back and Sync up the power point slides.

FYI the final out put is to Adobe Presenter. So i have to render out each slides werth of video. so if he has 83 slides i will have to make 83 cuts and renders to get to the final product.

so you can see why in a 3 hour project it would be nice to have trail of bread crumbs to follow.

thanks
Chris


Chris