Well jumped in the car after finishing work and the car would not turn over, I had the battery replaced a month ago, called the NRMA and patrolman turned up:
Checked battery
Tapped starter motor
After all that he decided to hook up his battery straight to the starter motor, as the car is fitted with an earthed kill switch, I still had to turn the key and complete the earth the 2nd time he cranked and the car started.

Got the car home and yet again it will not start, so before I call for a tow in the morning, anyone got any tips/ideas?

Update:car is at auto elec now, they diagnosed the immobiliser has stopped the car starting.
I've being quoted $250, pick the car up in the morning.

Well the auto electrician stripped out the immobiliser and alarm, went ok for a week then on Friday the same thing occurred, this time the NRMA had placed a wire from the starter motor to the battery which got me home, took the car back to the auto electrician yesterday, he swapped the relays next to the battery and the car started by the ignition, electrical gremlins piss me off arrh.