Delivery / Shopping Cart Edit Oscommerce

I have had some work done to an oscommerce site that enables the delivery price to be shown in the shopping cart. History: W e are a UK based design consultancy est over 5 years ago. We do a tremendous amount of OsCommerce work and require 3 or 4 regular experts who can helpus deliver cutting edge ecommerce solutions. The site has the SPPC (seperate pricing per customer) & and the Individual Delivery contribs installed. It is a heavily modified Oscommerce website. Certain large / bulky products on the website have the delivery cost included as an attribute – these products will have 0.00 as their delivery price. The Job If the delivery price is 0.00 then I would like the delivery price in the shopping cart to say 'Delivery included in price' – multiple orders should still display the correct delivery price...but if a customer purchases a single 'bulky / heavy' item then the shopping cart should say 'Delivery included in price' – hope that makes sense :) Looking forward to your bids and working closely together in the coming weeks and months, Pete