Yay! I was first! Anyways, to utilize the switches to the full extent, make the more complicated events have more than 1 page. Leave the first page blank, with just the graphic on it(make it a parrallel).

Then have something like...an action key page that shows the guy talking with the text ect ect.

Then, if you want him to do a different thing and say a different thing each time you talk to him, make a new page with different speech.

Trigger the first page by setting it to: if switch 067:guy talking=OFF. At the end of the first speech page, make it turn 067:guy talking=ON.

Trigger the second speech page with 067:guy talking=ON. End it with turning switch 67 off. Set both speech pages to action key, or else it'll be screwey.