Graham, if you are going to do 'Live' feed, you can also Broadcast your views across the internet while you are also showing the kids
Join us at Night Skies Network and get your own channel. I'ts easy
http://www.nightskiesnetwork.com/
Many people in there broadcast with just a webcam.
Or if you want to learn heaps about how to go about using webcams and cameras for 'Live' shows to the pubic, private, or broadcasting, join in here at Video & Electronically Assisted Astronomy:
http://www.cloudynights.com/ubbthrea...sed/sb/5/o/all
It's all good fun
Also, if you want to get a Philips SPC900NC, why not get one of Peter's (a member in here) Modified 900NC's that will also allow you to do DSO's as well.
http://www.iceinspace.com.au/forum/s...ad.php?t=70573