Whatever you want about scripts, there is not better than the ScriptCenter. You may find it on TechNet. If you don´t send me some comments or email and I can send it over to you. It is a .chm file with lots of scripts.
Since you are talking about STUDENTS, this may be very, very usefull:
Set objUser = GetObject _
objUser.AccountExpirationDate = "03/30/2003"
This is to set automatically their EXPIRATION DATE BASED ON YOUR NEEDS.