Northwind, I've been looking at Zard exhausts, he's an ex Termi designer/fabricator, its really well made and their R6/Gsxr slip-ons are £200 and available with baffles.
Was thinking along the lines of the twin pipe setup like their Duc 1000 sport.
Have got some pics to upload when internet is back on at home.
www.zardexhaust.it
Uk distributer :-
www.speedycom.co.uk