As your vehicle is approaching the ten year service interval we would advise having the cambelt changed within the next 12-24 months, at the very least within the recommended interval but there is no harm in having it changed earlier particularly if you plan to keep the car for some time. Choosing a main dealer or independent is a matter of personal choice - a good independent will likely offer better value and a quality of work that is at least as good as a main dealer and potentially better. If your car has a full main dealer service history then there is a case for maintaining this by having the work done by a dealer, otherwise we would pick a good independent specialist.