Here is a link to the Magic Extractor Tool found within Photoshop Elements.
Another neat effect that we will be doing in class is creating a poster effect. There are a number to choose from, but the picture to the left is an example of a romantic poster. Check out the tutorial located at http://www.photoshopessentials.com/photo-effects/elements/photo-blend/
Another nice link on how to photoshop a car into the movie version of Cars can be found http://forums.nasioc.com/forums/showthread.php?t=1151725