There is this guy that I've seen on television a couple of times who claims that playing piano is a LOT easier than most people think. I can't verify his plan's effectiveness but I can vouch that he's inspiring to watch and listen to. A couple of times I've almost ordered his book, even though I'm not planning to learn piano. he shows you right there, for instance, the chords he uses in any key that make one sound relaxed and professional.

FWIW:

"Play Piano In a Flash
"Lessons from Scott "The Piano Guy" Houston
Here you will find information on television personality, professional speaker, piano trainer, and educator Scott Houston. Scott's Play Piano in a Flash! and The Piano Guy with Scott Houston television shows continue to delight and entertain people that have always wanted to learn how to play piano or keyboard, but for whatever reason have been unable to accomplish their goal.

"Information about his best-selling book "Play Piano in a Flash!", videos, DVD's and other instructional materials can be found here as well. Also, information and schedules for Scott's live workshops and other personal appearances are available.

A Fun Read