Welcome Aboard,
Liz! Congrats on the new machine. I have an much older iMac with a 17" screen, amazing how much better than my old 'all-in-one-crt' model it replaced.
I'm not even updated to 4.8! You're ahead of me there, also. But I'd recommend David Pogue's "
The Missing Manual - Tiger Edition" rather than one of the "Dummies" books. He is a great writer, lots of experience, humorous and you can easily skip the intricate details until they interest you ( if ever! ). It's probably more expensive, but well worth it, IMHO. Perhaps you got a "book store" gift card? Those things can almost paper a wall around here!
I like your use of colors. I tried it once. It took a loooog time.
I've had Mac For Dummies for several months. With the move coming up and other daily tasks I just haven't found time to pick it up. Now I'm trying to find a place for all our "stuff". It always amazes me that after moving into a new, larger place there doesn't seem to be a place for everything.
! No gift cards.