Leather (specifically black) seems to big for fall 2009 - I think it is funny that the latest trends have not really ever gone out of style. My super fashionable 4th grade teacher, Mrs. Clark, used to sport a knee length black leather skirt over 20 years ago. I used to look forward to seeing what she would wear each day.
Other "trends" for this fall include:
over the knee boots (remember "Pretty Woman?")
tights (black, patterns, polka dots)