Whoa, steady.....
its easy for me to say that sitting here, but make a note on your file that you are giving them the benefit of extra time to confirm details.
Now, you have a file on the bike?
It includes: all info on the bike, its service history, the warranty, the detailing of the moments leading to unexplained breakdown, the diary movements of the bike, of your conversations with the breakdown company, and then all conversations with the dealer regarding what you - and also they, said?
Good.
Now, spend the rest of the afternoon just checking details again, and also follow up any info you might need later (DTI or CAB etc)
Then tomorrow, you could follow up with Ducati UK, if you dont get the service you should have from the dealer, and the bike fixed to your satisfaction.
Obviously you'll want to ensure the dealer knows you have the law on your side
Edited to add link:
http://www.dti.gov.uk/ccp/topics1/saleandsupply.htm DTI Enquiry Line: 020 7215 5000
[Edited on 16-2-2006 by AK and CK]