There are a number of really good online tutorials and podcasts on how to use Lightroom. Is there anything comparable for Aperture? (I hope so but have not found it yet.)

There are a ton of tutorials on Apple's site, here is a page with a consolidated set of links:

http://www.bagelturf.com/files/edc147135c0...d0ab8c-1127.php

Also, checkout the following websites:

http://apertureprofessional.com/
http://digitalmedia.oreilly.com/aperture/
www.bagelturf.com

And then there is a very active discussion forum at Apple:

http://discussions.apple.com/category.jspa?categoryID=184

Apple has like 100 tutorials here:

http://www.apple.com/aperture/tutorials/

Haven't had time to go through many of them yet myself.

www.lynda.com