What you should check out is Adobe's Design Center. It is LOADED with helpful tutorial videos for all of your favorite Adobe software. Whether you need help with Photoshop's integrated HTML linker, or just how to use the pen tool, you will definitely learn something new even if you're a veteran with years of experience.
This is the video workshop. You should definitely bookmark that site because you will learn something new every time you watch it.
The best thing about the tutorials is that Lynda Tutorials helped out with much of the videos, and they are so detailed yet so simple to follow that literally anyone can learn to use Adobe software.
So do it to it!
Your friendly purple hued primate,