Glad to hear you are impressed with your powerbook!
Applescript has been around a long time, and has always been a useful tool. It is extremely efficient at automating repetitive tasks that you do often. It also has developed into almost it's own style of programming.
I suggest you buy a recent book on learning applescript and at least check out what it has to offer you individually. It is really easy to learn and begin making things for yourself. I have made basic things for myself with it without much hassle at all, and I have found numerous applescripts that have performed very needed taks for me.
Very cool scripting language, and very well integrated into os x.
Just for fun, go to /Applications/AppleScript/
open up the Script Editor, and under the file menu select open dictionary. Check out all the things that applications offer applescript, and vice versa.