OK I've done my baseline research and decided a torquey rotary with variable speed is the polisher for me.
Only snag is choosing one. As per usual, 10 different people say 10 different polishers are the best.
One make that does get mentioned a few times is this fella :-
http://www.powertools2u.co.uk/sanders-and-polishers/makita-9227cb---180mm-sander-polisher.htm
I can't find anywhere that sells this polisher as a 'kit' with various cutting compounds and pads etc. Any know of somewhere that does?
Ta