Now THERE'S a use for MOBYesque software that I hadn't thought of! Shame we didn't think of it first... hey Lincoln, Damian, you should try this with the US office and see if we can get some money out of them :-) http://www.genomeweb.com/articles/view.asp?Article=200372311833 -- Mark Wilkinson <markw at illuminae.com> Illuminae