Nice. Photoshop sure is quite the package.
However, I wonder why, along with all the tools you cite, there is no mention made of the Gimp...? After all, it is available on Windows, Mac and Linux, it doesn't cost a dime, and it also includes:
- HDR effects (in script-fu): Tone Mapping and Exposure Blend
- painting effects (programmable brushes)
- GEGL (yes, 3D in Gimp)
- lens correction
Now, all of these aren't as advanced nor are they as easy to use as the Photoshop versions, but they are here and they work. For free.