I would do brokenfixed's style of bracket (or the Ghetto Freak) if I had it to do over again. But back in the winter of '02-03, this is what my buddy Gene and I built. It ain't pretty but it works and it is very strong. Did I mention it is ugly? I took these pictures after I ran it for a while and needed to make some "adjustments" so it's good and dirty, too.
http://picasaweb.google.com/friarjohn/BatteryBox#
