While working on the thermophiles/hyperthermophiles part of the presentation, I found this resource which might be helpful for all of us: http://serc.carleton.edu/microbelife/extreme/environments.html
It's called "Microbial Life Education Resources" and is a compilation made by the Science Education Resource Center at Carleton College. It includes all of the extreme environments we are researching as well as several others. Worth a look if you need some more ideas for your papers.