You can use DataAssist to insert the values into the database to keep track of the poll results. To design the form, you can either use Dreamweaver's built in form creation, but you will have to style the form yourself or you can use CSS Form Builder to create and style the form.
There may be a few other tools that are helpful depending on what you want to do. For example if you want to put the poll on a restricted user page, Security Assist or User Registration Solution Pack would help with that.