Gents, thank you all so much for your sound advice. I am going to purchase a power supply from Dick Smith to do it all.
http://www.tandy.com.au/cgi-bin/tand...uct/View/Q1755
With all fans ande peltiers drawing a total of 19.1 amps, I definately need one.
The Mod is finished, tomorrow I will put the telescope back together then wait for the funding for a power supply.
As soon as I get first light on planetary (probably Joops) I will post a result.
It was a big risk pulling apart such an expensive telescope for the first time, but I reckon what I have learned on the journey was worth it!
Baz.