Hello, I work at a community college that is looking into replacing Windows XP with a Linux derivative on our kiosks. They run windows XP fine, however, with all the scripts and group policies required to lock them down it can take up to 10 minutes to log in. I am looking for something that will not save data in between sessions, will be fast to log into, has only web browsing functionality(used for web mail and for general web surfing), gives the user no control over the system whatsoever, and will authenticate to a server.(Preferably straight to our windows server)
I know I could probably heavily edit an existing distribution such as Debian or Fedora to achieve this, but I was wondering if anyone knew if someone has done part of the work for me.

P.S. I am also researching this independently, but thought I might as well see if anyone can help.

this requires a small bit of system administration on fedora ...

Yes, I posted this as soon as I found out it was my job to look into it.
It does seem very simple to use LTSP(http://www.ltsp.org) and perhaps follow the guide here: http://www.edu.helsinki.fi/atk/ltsp_kiosk/ and get it set up. Much easier than I thought it would be. Sorry to waste your time, but maybe someone else will see this and it will help them.