This time I don’t have so much to comment, more then what the Authors of this Article already did.
I found on “PSD Tuts+“, an amazing list of UI Design Tutz that’s simply rock, and have to say just the same word:
Enjoy!
Want to improve your interface design skills? If so, then check out this group of Photoshop tutorials. There are loads of tuts here to get started with basic elements and work your way up to full interface designs, which integrate numerous custom elements. If you’re looking to get started with Photoshop UI design or build these skills, then jump into these tutorials right now!