I have been asked to post some tutorials on Photoshop CS 3. Though most of my tutorials can be done with all versions of Photoshop, this is for PS CS 3 users only. I will demonstrate the Black and White Filter and the Darker Color and Lighter Color Blend Modes which are exclusively found here.

This is a photo I have opened in Photoshop.
These are the effects that cn be achieved with Black and White filter and the Darker Color and Lighter Color Blend Modes. The tutorial is here.