Here is some reading for you, Rob:-
http://www.iceinspace.com.au/63-374-0-0-1-0.html
http://www.cloudynights.com/category...ory_id=76&pr=3
http://www.aoe.com.au/binocular_guide.html
I reckon a 10x50 (10x42 and 10x60 are other available options) pair of astronomical binoculars ($70-200) with a fairly stable camera tripod (around $100-120) and the appropriate tripod adapter ($10-20) will get you started.
Don't be talked into a set of zoom binoculars and don't buy a pair with a red coating on the objective.
Cheers
Eric