I am truly amazed that I had not mentioned this earlier. Especially as I've been using it to help me with this blog!
Windows Movie Maker for making short (or long) videos, is brilliant. It comes standard with Windows 7 (and 8) and is free to download if you don't already have it. It's easy to use, pretty intuitive, and doesn't require powerful hardware. To see some results, just take a look at the few I've uploaded for BeeBots and Scratch! 
It is also easy to take a collection of images and add simple effects and set them to music, and literally takes a matter of minutes to do. Additionally it can easily be combined with Powerpoint to make slides and presentations more interesting as a bonus! It's also a fantastic way of showcasing children's work at the end of a topic, or introducing a new one as well!
For obvious reasons, Movie Maker may appeal to visual learners, budding filmakers and storytellers, and is a fantastic tool not just for the teacher to use, but for pupils to learn and engage them in their work (the most obvious example being storytelling). Best of all, because it's free, students can easily take their work home to continue once they've been hooked in by the prospect of movie making! 
Definitely a great tool to add to any teacher's kit box.

Having been abroad on family visit for the weekend, I was fortunate enough to steal a little time with my young cousins (aged 8), and after securing two more laptops, was able to test a little bit of minecraft education. Below you can see some of the results. 
Having found their current topic was the Egyptians, we worked for two hours building a pyramid, albeit heavily influenced by pop culture and not particularly historically accurate (giant golden skull with flaming eyes?!), complete with all sorts of traps for would be robbers. It was a fantastic experience for me, and fascinating to see their ideas develop through discussion, questioning and teamwork. I would, however, have loved to have been able to put them in separate rooms and see how they fared communicating solely through typing, but was unfortunately too caught up in watching to arrange this. I was particularly impressed by how quickly they became independent in working and taking control of their own learning , designing almost everything themselves (Although the circuitry did take some assistance and direction).
Have a click of the images below to enlarge them, and feel free to comment with any suggestions.