I'm reading some of these replies by technology integration specialist and I'm envious to those who can even make "assignments" --you have a good deal more backing than some of us. On the other hand, in the past 8 days I've helped an art teacher create wiki pages for her students, and an English teacher creat blogs for hers. My secret--we are offereing recertification points for working on an advanced technology certification. They sign up to get the points, but when that English teacher saw what she could do with blogs it was "Hey, I like this."
I think this is great. My kids just loves the Wii and Ds, so I can imagine how much your students love it.....
Consider this new and free digital teaching resource. Children / students of all ages can practice english spelling and if they wish fundraise for their school, college or uni. I believe teachers will like the technology.
I think the answer you're looking for is to cultivate a community of practice (Classroom 2.0 is an example of a CoP). Etienne Wenger is the goto guy for CoPs: http://www.ewenger.com/