I have problems with RSI and am looking for ways to minimise my mouse use. I’ve come across a product called the Contour RollerMouse that I’m considering buying. Have you used one of these or do you know someone who has?

Also, if I buy this from Amazon it costs me US$199 plus international shipping. If I buy it here it costs me a minimum of AU$355 plus domestic shipping. So I’m thinking of buying from Amazon but I’d have to use a shipping agent as Amazon won’t send it direct. This means my warranty might be (probably will be) affected. If you’ve used one, what was the product’s reliability like?