Looking for opinions/visions.

We have a mapping tool that can pickup data from Salesforce Opportunities. We have been asked to map both the Opportunity probability % AND the $ Amount.

So it would be a map of the US, showing where the opportunities are (based on the related account address).

Also, lets say I want to portray amounts based on 5 different $ ranges.

But what is the best way to portray the % and $ information? Can it be done on one map so that it is clear? Has anyone done this in a clear way, or if not, have any vision on how to present this info?

All help appreciated!