@dr_o.
I know what you mean, saw it in pc world earlier, it's bloody expensive though..179 for the pen. You use it to write in a special notepad and it stores everything you write/draw, then you plug it into a computer and you can digitise it. Clever, but how useful it'll prove for that money I dunno!
On topic, a bamboo pen and touch is about 65 quid, worth every penny. Takes awhile to get used to, but when it clicks you'll wonder how you ever coped with a mouse!