If i unlock my blackberry storm will i still have to pay the $30 monthly fee to

You dont wanted to pay for every month. There can be many ways to get your unlock code. If your contract period is complete you can ask your cellular operator for the unlock code. But, they do make it very difficult for you to get the code.
You can also visit Theunlockarena.com and can unlock your mobile. This site has a nearly perfect with google checkout and they were recommended highly in the cell phone forums. I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked.
Hope this helps.