Photoshop 7 compatibel (and upward)
Some of these are meant to be used to paint - they will also react on pen pressure if you have a tablet. And some are just for stamping.
In any case, have fun and show me what you make! Rules are in my journalAbsolutely NO REDISTRIBUTION - if you want others to find this set, link them!
How to install, use, create brushes: [link]
----EDIT - August 2010:
Wow! over 100000 downloads
I'm sorry if I don't reply to every comment, but rest assured I will read them all and I will fave your creations
----M O R Eb r u s h e s
For even more Photoshop brushes, visit my brush collection