I think that fall is a perfect time to do a tux in Navy, Dark Brown, Dark Grey or maybe even Light Grey. Some BM dress colors just don't look right with Black (like navy or brown tones or even orange. Orange and black just seem a little halloween-ish - not that there's anything wrong with that, if that's the look that you're going for.)
I know that there are those who think that a tux is only black. That opinion aside -- Who all is doing a tux color other than black? And what color are you coordinating it with?