Within a decade the Cape Verde group of islands off the west coast of Africa could be a household name for mass tourism. With multi-million-pound investment programmes planned for hotels and infrastructure, the Cape Verde property gold rush is still in its infancy. So London-based Aussie Ben Tassone and his British girlfriend Debbie Westell realise that the time to buy in this idyllic location is now. Amanda Lamb takes the couple to three very different islands, hoping they can make up their minds before property prices start to rise.