Any web polls that will display crosstab results to visitors?

My organization already uses SurveyMonkey, Polldaddy and Playbuzz. None seem to be able to do the thing I've been charged to accomplish:

• Ask two questions
• Display instant results showing the relationship between the two questions (to visitors/poll takers, not just to the survey creator)
• Allow viewing of results without voting?

Does such a service exist?

If I can't find one that does this out of the box and have to have something custom-built, any ballpark idea how much we might have to pay for such a thing?