Lots of Oil Leaks

Do you know the history of the motor, and when was the timing belt done last?
If you can find the right mechanic, a new timing belt, tensioner pulleys, water pump, cam seals, etc can be done without removing the motor.
 
First of all try to trace where most of the oil is coming from.
Here are a few places that I know about.
 
Most common leak:
Oil in the spark plug chamber means that the cam cover gasket is leaking.
Often it will also leak from the rear edge of the cam cover and drip down onto the alternator.
That can be also fixed without removing the motor.
 
Timing belt end:
Oil leaking from the rear edge of the timing cover and dripping on to the alternator could be cam seals that could be checked by removing the top timing cover.
BTW, apart from the alternator, cam seals leaking probably won't harm the timing belt.
 
A lesser possibility is the oil pump front seal or the oil pump 'O' ring leaking.
 
Flywheel end:
Distributor seals leaking. There is an external seal and an internal seal as well.

Thanks heaps for the advice. Timing belt hasn't been changed so its due. 113,000km on the odometer. Most of the oil seems to be coming from the rear of the timing belt, down the block and yes onto the alternator.
For those SW20 fans in WA, who could do the above jobs but do it with the motor still in the car. WTF I have heard are good....anyone else?

Tristan at WTF or Tony Flood in Welshpool.

Cheers