I`ll also go for the hot starter relay, but that is more of a patch that will make the whole system work `better`. I think you really need to find where the fault is first. The very first thing I`d do is check the earths and the best way in my opinion is to take the earths off and clean them up and just check them over, start with the one from the body to the battery and clean and inspect both ends, then the earth from the gearbox to the body, then look at all your starter connections and use a meter and see where the juice is going. If you have it not starting, then you can also try helping the earths with some jump leads to assist in various places to give you a little indication that you are on the right track, so earths first as its free 
Then next guess is ignition switch, but try and prove what it is with a meter before you spend dosh on willy nilly changing components :mrgreen:
Ozziedog,,,,,,,,,,,, Leck tricks,,,,,,, Work of the devil :mrgreen:
