[Lizard]

If you do decide to tackle it, I'd recommend first taking a peek at some of the other scripts on the forums and finding one that does something similar to what you want. You can open them in AppleScript Editor, which should be in Applications > Utilities. Read through it, and figure out what it's doing. Then start changing it, little bit by little bit, to do what you want. Once you've got it partly working, you might come back and ask the forum for help with specific questions.

There are several books and websites about learning AppleScript also. I'm not sure which ones are the best these days.