beautifying Getopt::Long in situ subs

[perlcapt]

I'm looking for suggestions on how to beautify/clean_up my subroutine argument references. Here is the situation: I have many options to my application, all of which are stored in an object attributes structure. Typical Getopt::Long elements looks like this:

 my $opts = GetOptions (
  "input|source|i:s" => sub { if($_[1]) { 
                               $new->source($_[1]);
                             }else{
                               $new->source($last->source);
                             } },
  "verbose"  => sub { $new->verbose($_[1]); },
   # and so on

What I find ugly is the use of $_[1] to reference the value that GetOptions parses for each option. $_[0] is the option name. $_[1,2] are used for values or references to hashes and lists. I suppose I could just pass the whole list to the object method, but that gets ugly since most of these methods are designed to store/retrieve attributes and defined by an AUTOLOAD subroutine down in the class i.e. package.

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Updated to reflect proper variable prefix for list refs. thanks to davido for waking me up about my syntax. -ben