‘Is there some resource I should be aware of?’
There are many many good Photoshop books (unlike Vegas, where there is (nearly) only Douglas Spotted Eagles book about Vegas).
I would start with Scott Kelby’s Photoshop CS2 (or CS4) book for digital photographers, followed by Photoshop for Video (Richard Harrington). This book is written for CS2, but free updates can be downloaded for CS3 and CS4
Next, to get a bit more deep inside information, you can go to The Layer Book, written by Matt Kloskowski (there are more books with the same title, but I like Matts book the most).
After the layers, you will have to dig into the channels with Scott Kelby’s (absolute my favorite photoshop author) The Photoshop Channel book.
To finish your basic photoshop training, you can read Photoshop Masking and Compositing, written by photoshop expert Katrin Eismann.
‘Someone else told me that I should join the National Association of Photoshop Professionals, or something.’
I don’t think that the NAPP will accept my membership since I’m not a professional photographer or editor 🙁 .
What about you?
Theo