Paul,
If by deodouriser you mean just something to add to the solution to make it smell nice then I like Prochem's Odour Fresh, Hyramaster's MultiPhase and Craftex Lavender Fresh.
If you're looking to sanitizers then it is always good to have Urine Neutraliser and Clensan, both Prochem and also so Stain Pro which although not a santizer it is good on things like vomit and other protein based stains and have them on your van at all times because you will need them.
On the NCCA issue, if you were trained by the NCCA but are no longer a member, you can quite legitimately say that simply because it is true, as long as you don't imply that you are still a member.
Simon