Thanks for the advice Nagz.. Whenever I get a branch I pour boiling water over it and scrub it, I do this over and over, for a period for 2 - 3 days then let it air out.. I scrub the branches whenever the enclosure gets cleared out as well.
At the moment his set up is tempory, I think.. I need to find some nice logs for him, I just need to find the time to do it.