I found this graph while reading an article. I found that it looks very professional. The way I have used graphs so far have been with Flash Graphs providing data in XML format, but I'd like to get away from flash and just provide PNG or JPG images.

In all of the graphs I found with PHP and GD, they simply just haven't looked professional. So I was wondering if anyone here believes there's a way to create this kind of graph in PHP using whatever engine in the background???