Off site backup by the drink

Ever since I read an interview with Jeff Bezos by Tim O'Reilly when Amazon launched the idea of S3 I have really wanted to find a way to use it, and now I have. Unfortunately it is a bit beyond me to develop something for it from scratch but thanks to the clever people at Jungledisk I dont have to.
We were asked to create an alternative suggestion for an offside backup solution for a large company who had been quoted £100K a year and we have created a rather natty alternative solution for about £30K a year; all using off the shelf tools (scripted of course) and Jungledisk.