Mine was due it's 50,000 service in Feb.
In view of the fact that it's only done 25,000 I got Prosport to change the cambelt only.
That plus 2 Oil Filters & 4 Sump Washers cost £205.45 after 5% SIDC Discount on the parts.
Ayde did the Oil change Silkothene Pro S from Opie Oils (site sponsor) cost £45 ish.
The Air Filter was replaced in June with a K & N Panel filter and the brake fluid was changed then also when the brake hoses were upgraded to Stainless Steel ones.