nDo - Normal Map creation in Photoshop

What is this nDo thing?
Introducing a toolset for quickly designing normal maps without ever leaving Photoshop, nDo is a melting pot of normal creation techniques. Sculpt using your custom brushes, create volumes from selections, paths or layers, apply filters, generate complexly multifaceted normal maps from height or photographs, rotate and transform without biasing normal – nDo is designed to cover many of your normal mapping needs in a to-the-point format.

More info
To learn more about the tool, go to http://www.philipk.net/ndo.html for installation instructions, tutorials and downloads.