I absolutely love my SuMo.

It's the most fun you'll have with a 36 HP motorcycle.
I also have a 2003 Honda ST1300, so the DR-Z usually gets the action for
commuting duties and kickin' around the back roads in SW Lower Michigan.
Plenty of mods available to increase the HP if you wish and parts are a lot less expensive
than those for a sport bike.
If you haven't done so already, check out
www.thumpertalk.com and
www.supermotojunkie.com