Thanks for all the replies!

I was hoping for some success to report but nothing so far- I ordered a bunch of new caps for the analog board last Monday night and thought they would have arrived by now. No such luck.

I took one of the analog boards though and reflowed the solder on a lot of the connections, especially around where the power connecters, power switch and flyback tranny are.

Result is the computer boots and stays on for about 5 minutes then trips the RCD.

I would play more tonight but the family gets annoyed when the Mac takes their youtube, TV and internet with it...

Hopefully my replacement caps will arrive next week and will get some results (I wasn't able to order the lot though).

To answer an earlier question- all the Mac Plus's give the same result.

Oh, and for RickNel- there is a Mac Plus on eBay (Australia) with the same description at the moment.

Thanks guys.