In case anyone else is trying to do this I'll (partially) answer my own question.
In order to remove the window winding handle there is a metal pin between the two plastic peices visible from inside the car, remove this (ie. push it off with a screwdriver) and the handle will slide off. The door card itself is attached with plastic rivets around the edges which just pull out, but if you're not careful they will pull out of the card rather than the door.
As to how to remove the plastic door handle, I'm still working on it...
Graeme, December 2004
