Someone like yourself should definitely be writing to Apple. Once they realize they're about to lose dozens or hundreds of school labs because of this idiocy, maybe they'll wake up. An official letter from a purchasing agent carries a lot more weight than letters from individuals. Please take some time out of your day to give feedback both electronically and by certified mail. We would all really appreciate your help.
Oh, and sign the online petition and get anyone you know to sign it as well:
http://www.petitiononline.com/MB1394/petition.html
Thanks.
Done. The signatures are over 2300 already. Let's submit this to digg, shall we? (search for it first there).
EDIT: Here it is: digg it up so more people can see it:
http://digg.com/apple/Online_Petition_for_FireWire_ports_in_Apple_MacBooks_13