Free Photoshop Brushes
Several professional artists have made available their Photoshop brushes for free.
Art for Games - Memory Folds in Clothing Tutorial
Art for Games have posted a free tutorial on creating memory folds in cloth, using ZBrush and Photosohp.
Halo Speed Paint
Watch an impressive speed painting of Halo's Master Chief created in Photoshop with a Wacom Intuos4.