New user provisioning script

I have created a script to map a home drive, grant permissions to it, add the user to the correct security/limited access software groups, send an email about voicemail recording and put the PC in the correct OU for the Area Office.

At the moment it works fine but this is my first big script and my boss has asked me to present it to the area next week. I have found bits and pieces from all over the web and re-written it to suit my needs. I have never done a powershell course or anything so I would love to have some feedback before I present this.

Is anyone able to review my script and see if any improvements can be made?

# This script will map a home drive, grant permissions to it, # add the user to the correct security/limited access software groups, # send an email about voicemail recording and# put the PC in the...