I was looking for a camera bag to accommadate my 7d with zoom lens and looked at jessops and other sites but they were so expensive. But fortunately stumbled on this camera bag which has a ten year warranty and is made by samsonite. It also fits my 18-135 lens perfectly.
You might be able to get it cheaper elsewhere but this deal seems good from a good retailer.
Product Description: Samsonite Samoa DF 72 Colt Zoom - case for camera with zoom lens
Product Type: Case for camera with zoom lens
Manufacturer Warranty: 10 years warranty