Hello
One supplement in particular you might be interested in checking out is cimetidine. this is sold as an over the counter drug Tagamet commonly used for stomach problems. It has been studied with several cancers and here is a link to some information about how it works and references some case studies of melanoma patients. It works on many levels to fight cancer and it is readily available and cheap.
http://www.second-opinions.co.uk/cimetidine.html
Any cancer regimen needs some good immune boosters. A couple potent ones are maitake mushrooms and transfer factor.