I need some Photoshop help for changing rims on pics. How do you guys do it? More specifically, how are some of you guys putting rotors behind those wheels?

Help?

 

actually you need help on just plain photoshop. putting different rims on a car/dropping it/adding rotors is the same thing as putting a duck on sanddune. Its not what the image is but learning the concept behind it.

im sure http://www.yahoo.com can help