The other day I was helping people use computers at a local community group, I knew all of them have young children so I put together a CD with Tux Paint, Tux Paint stamps, GCompris, Elephants Dream and I have some SFD leaflets left over so I gave them a copy of that and we wrote the url of Wikipedia and my blog on the back. We briefly discussed some of those things and then had a look at Tux Paint and GCompris. They were all really happy with the software and we had fun doing some of the activities. Not everyone has the internet at home so thats something to remember.
Links to download the versions for windows users:
The page to download Elephants Dream.