Be my guest. :-) From what I gather, tutorials are written by those who feel the need to write them, not by popular acclamation and appointment/assignment to some poor sucker. I, too, have noticed a number of bio questions popping up here from time to time, and have wondered if I could ever switch careers into helping biologists use computers for their research. But then I am reminded of the smell of the biology building at my alma mater, and, well, I'll stick to my current job, I think. :-)