Hi again, here's another thought for you Daz, being new to CS3 myself, I did the usual thing and bought a variety of books on the subject. As always happens, the best one is the last one purchased (if I had bought this one first, would have not needed the all the others).
The book to which I refer is Adobe Photoshop CS3 for Photographers by Martin Evening. ISBN 978-0-240-52028-5
It’s just fantastic IMHO and full of good stuff.