If anyone has any children who love border collies, then get them watching Mist - sheepdog tales on Channel 5 (or dvd - www.mistthesheepdog.co.uk). I bought the dvds for Ben (2 years) and Wills (6 years) and they absolutely LOVE it ... I have to say, I quite enjoy them too!
Have you also read David Kennard's books about his farm & dogs? It's also about Mist and co., but more for grown-ups! (Though I do try to watch Sheepdog Tales if I can!).
I have read both David's books and have the Year of the Working Sheepdog dvd too - all brill I have also met and chatted to David Kennard at a couple of sheepdog trials. He seems a lovely chap. I thought the Mist dvds might be a bit of a busman's holiday for our two kids, but they love them :-D