more?

http://www.brushes.obsidiandawn.com/

this website has got textures as well as brushes..

http://www.photoshoproadmap.com/Photoshop-downloads/Brushes/Most-recent/1/

and hey.. photoshop cs3 supports 3D!
http://www.adobe.com/products/plugins/photoshop/
chk what adobe has to say..

http://www.itsuji.net/brushes/index.php?y=14feathers.php&x=setlist.php