Twiigs.com has some really clean/simple/highly-customizable polls. They are free, just sign up and you can create multiple public or private polls and manage them all from one place. They have inline HTML versions that with work well with Nabble. Though, it would always be nice if Nabble could make an exception about javascript for twiigs.com so that our users would never have to leave the Nabble forums to see the results.