Well it's four weeks later and I'm finally back on the road. The oil pump was the problem and with a shiny new one fitted the oil light disappears within 5 seconds on start up. The car was in the air for four full weeks on a hoist with the front end dismantled while my mechanic tried to find time to work on it. He emailed me at 11:12pm one night and said he was getting delirious so he's going home. Most of the work was after hours and he didn't charge me for a lot of it. Top bloke! All in all it was a fairly major job and while he had everything off I got him to replace the timing belt and drive belts. The main and conrod bearings were also shot and needed replacing. I got new rotors and a bunch of other peripherals with the end result being $2070.00. Thanks for all your input. He used your suggestions and said it was good information. His name is Matt and the business is MJP Automotive in Meadows SA if you're ever in the area. Gotta book a month in advance though cause he's too busy! What I learnt: If your oil light is on and you know you've got oil in it, try replacing the sensor. If that doesn't work take off the oil filter, let it drain, crank over the engine and see if it's pumping out. If not, it's your oil pump or blocked pickup. Either way you're in for a few $.