portablenorthpole.tv/home
Have a try on this site. Excellent for the 6 year olds and under - my 3 year old dd was agog!
You input a few details about your dc and download a picture and get sent a message from santa for them - it is a 'real' santa (i'e not animated) who talks to them and uses their name, knows what they want for Christmas etc. Very, very good - and free!