Cheers, KC350Z, Ebized, Marzman...
I did Ricey, Lee sorted it for me... I very much doubt the engine has gone, from what I've read it has all the signs of a faulty crank sensor... But a few people have had similar symptoms with cam sensors.
My problem lies in lack of funds, so can't afford to be playing the lottery buying sensors... I have a mate who lives an hour away with Nissan Consult 3, so I'm just trying to twist his arm to come down. Failing that, I guess I'll have to buy the JOBD.
Will get the battery checked just incase, cheers Mike