A Photoshop tutorial about how to create a leather textured realistic briefcase icon. The tutorial is written by Andrea Austoni for PSD-Tuts+. The tutorial is well explained with each and every steps with screen-shots.
Jay wrote a tutorial for how to create a realistic looking button with css3. The whole idea is to use a combination of subtle effects to create a three dimensional object. The idea is that: The button is set into the canvas. The texture of the button is different from the canvas and the surface is slightly raised. And the text of the button is pressed into it.
Tutorial9 has comes with a tutorial about how create an interface for a sleek audio player with Photoshop. The tutorial explained with detailed screenshot step by step. The tutorial was written by Jurgis and you can reach him by his twitter account.