CS4 Camera RAW Adjustment Brush

This is a Camera RAW Brush tool that allows you to selectively apply limited color and fairly decent tone and density corrections. What an awesome tool!!

http://www.photoshopuser.com/?page=cs4/videos&video=scott_cradjustment

CS4 content aware scale !

One of the coolest new features in Photoshop CS4 is Content Aware Scaling (CAS). Adobe licensed an algorithm that senses "dead" areas in photos, and resizes the image to avoid squashing or stretching every object.

http://www.photoshopsupport.com/photoshop-cs4/tt-cs4-videos/intro-05-customizing-interface-cs4-video.html

Use the new and revolutionary Content-Aware Scaling feature to automatically recompose an image as you resize it, smartly preserving vital areas as the image adapts to the new dimensions. Get the perfect image in one step without time-intensive cropping and retouching.

http://www.photoshopuser.com/?page=cs4/videos&video=dave_contentscaling

http://cameradojo.com/2008/10/25/content-aware-scaling-in-photoshop-cs4/

http://twipphoto.com/archives/1458