decided that this box is going to be an XP Pro box for the kids to peck around on and learn to type, play games, etc. I plan on limited their access to EVERYTHING, and the cool thing about the case is that it can be locked up with a big metal door so curious fingers can't reach drives, power or reset buttons.
Considering all my options for this... I know there are web sites out there that help create a customized windows install (some make a new ISO, others just pull services and stuff from your current install). I might dig around and see what is possible and how to give them the access to do relatively harmless stuff but lock away stuff that they could really screw up.
Oh, the ages are 3, 5, and 8, so free reign over a computer is not an option at this juncture