Ok, thanks to some much appreciated advice, I have added some more information regarding the above,
When i try to start her after not driving her for some time, and turn the igntion switich to acc., no lights on the dash turn on.
I then turn the ignition and there is a click but nothing at all.
When i go jump her from this state, with the leads attached to the actual battery of both cars and i turn to acc., immediately the dash lights up and the mirrors unfold quickly, and the boot light comes on.
I then turn the ignition and the car fires almost immediately and falls to a steady idles smoothly.
To clarify that, the engine will bite once, then fire straight away, or other times it will immedately start.
When i turn the ignition, the car never spins on the starter for any prolonged lenght of time, she will always ignite either first time or after that first bite.
There is no undue noise coming from the started motor during this process or upon idle.
When i drive the car, there are no other obvious issues, since the first day she has been a very smooth. Unique Auto Sport in Sydney used to service her and noted a near perfect compression test a few years ago now.
I hope that that assists in gaining further advice,
Thanks very much,
Regards