PurpleK,
I'll second the Burley Flatbed. It's rated for 100 lbs but I've had about 115 lbs for a short distance. I like the Alternative Hitch, two models for either quick release or nutted axles, for a cleaner look IMHO. Plus, I get to answer the question "What the @^%#$ is on the end of your axle?"
http://www.burley.com/products/trail...ive+Hitch&i=11
RLS