ProfP - thanks for reminding me about the Phaedrus kit - some time ago I came across their kit but had forgotten about it.
It was the 'port forwarding/fiddling' bit that I was hoping to avoid and I was looking for an easy peasy ready-to-go solution.
Also rading further I did notice that the 'free' hosting at IObridge was limited.
So, perhaps time for me to get down to the Arduino solution or to have a further read of this article that describes 're-purposing' a Current Cost bridge available for £29.00 ish on Ebay ?
http://john.crouchley.com/blog/archives/722