As for Burn and Dodge. To be honest I haven't the foggiest idea how they work. Anyone have any good refs. on the subject?
Try these...
http://iit.bloomu.edu/vthc/Photoshop/Enhancing/burning.htm
http://www.arraich.com/ps6_tips_ddodgeburn1.htm
http://graphicssoft.about.com/library/course/bllps508c.htm