Forms with font-end visual graphs/charts?

We’d like to make a “how much bandwidth” display on our site.

User selects drop downs of numbers (i.e. 0-5) for each of the activities (stream video, online gaming, etc) and we do math based on how much bandwidth each is worth * number of users.

I know this can be done with a text display in GF and calculations. Job gets done, but not amazingly pretty.

We’d love to do it with a graphical chart, say 1 Gig, 1000 Mbps, and fill in the graph/chart as they add activities.

Are there any add-ons that might do this?

Have you checked out GF Chart?