LOL - Since Mart stole my "Fundamentals of Scripting" thunder, I'll have to scramble a bit. (Thanks, Mart!)
While it doesn't talk about HOW to write a login script, there's a lot of information in the Universal Login Script User Guide that's posted on my web site. It should provide some fuel for your imagination.
One of the most important recommendations I can make is to put your data into an external configuration file. This way, you don't have to edit your script every time some share is added or modified. Your login script impacts every user in your environment, so it has to be "mostly harmless". 
Glenn
_________________________
Actually I
am a Rocket Scientist!
