When I went to the sale at Symphony Skins, I stumbled upon three vendors at CHD with links to clothing tutorials for Gimp and Photoshop.
The tutorials are so good and wo well explained, you must check them out !!!
One tutorial to make sweaters.
One to bake light and shading in Photoshop with a special filter !
UPDATE: If you are looking for nice brushes to enhance your design, check out www.obsidiandawn.com.
Posted by Feodora Umarov
Thanks for sharing!