Rails - Jul 2005 - How to access debug logger in a class

I have a model that does not inherit from ActiveRecord.  What is the
right way to add logging to it so that I can access the same debug log
that the rest of rails uses?  Here is my model:

class SearchRequest < ValidatingBase
  attr_accessor :fullname, :email, :phone
  validates_presence_of :fullname, :email, :phone
  validates_format_of :email, :with =>
/^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/, :if => Proc.new { true }
  validates_format_of :phone,
                      :with => /^[(]*\d\d\d[ )-.]*\d\d\d[ -.]\d\d\d\d$/,
                      :if => Proc.new { true },
                      :message => "should have the format
XXX-XXX-XXXX"

  def initialize(req)
  	if req
  		req.each do |key, val|
  			val.sub!(/^[(]*(\d\d\d)[ )-.]*(\d\d\d)[ -.](\d\d\d\d)$/,
''\1-\2-\3'') if key == ''phone''
  			self.send(key + ''='', val)
  		end
  	end
  end

end

Thanks,
Carl