Hello Neil
I am under the impression that AVTECH2000 Offer a ICAO Syllabus in Airline and Airport Operation and Dispatch, I think he course is about 1800 Pounds Maybe more with regards to travel to exams and other such costs, they offer the course on a do it on your own basis and Its very nice, I am applying to it soon and they let you pay in Instalments, also the Jeppesen Academy also offer the Flight ops courses not sure what syllabus bu check out good old google as I dont eally know how good AVTECH2000 is as a course provider but this is a start and have a look, if you needs more info I am sure my limied knowledge in Aviation will help you.
regards
WA