um, I would start with my gf (well we are soon engaged but

), the next one would be tool-set (saw, nails, hammer etc) and well knife. assuming there is some game present on the island of course, or at least some fishes nearby.
the setup would be different to island that is near north or south pole tho.... assuming it to be near the equator ;P geez, others didnt even think about that it seems....

to colder place I would go with warm clothing for me&Sarah (its the name of my gf), her, and tool-set. and would make it sure there is a shovel on the set!