Creating a simple drop-down list

Hey folks,

I'm having major issues trying to complete a simple task.

Goal:
Create a drop-down list and populate it with states. When the user
fills out the form and saves, the state selected should be saved with
the record.

Problem:
When trying to save the record I get the following error:

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.inject

And it points to this line in my .rthml:

<%= select_tag 'state', options_for_select(@states) %>

And here is my controller code in the 'new' method:

def new
    @client = Client.new
    @states = %w{-select- AL AK AZ AR CA CO CT DE DC FL GA HI ID IL IN
IA KS KY
                 LA ME MH MD MA MI MN MS MO MT NE NV NH NJ NM NY NC ND
OH OK
                 OR PA RI SC SD TN TX UT VT VI VA WA WV WI WY}
  end

The list populates fine with states, but bombs when I try to save.
Please help.

Thanks.