I had similar concerns about finger prints etc when I had the black satin and matt done on my Pantera. I looked around expecting to be able to find lots of products dedicated to taking care of such finishes, but there was very little to be found. I settled for Swissvax, see here: http://www.swissvax.net/mercha...gory_Code=MATT-PAINT
I have used their car shampoo, oil and wax remover and special wax for matt finishes and it works well. For me it has been easier to buy from e-bay as there are no local distributors here. But I believe there is one in England.