Attractive, dynamic bar graphs & pie charts?

Do you have a question? Post it now! No Registration Necessary.  Now with pictures!

The graphing tools in use at the Campaign Monitor site are amazing.
They have a very appealing, juicy sort of Fisher-Price look to them.
Examples are at:

I can only guess they must have programmed this stuff themselves,
because I can't find a freeware/shareware/commercial graphing &
charting library available anywhere online that offers comparable

Am I just not looking in the right place? How would you fine folks go
about generating something similar?

Many thanks in advance,

Site Timeline