Support for adwords conversion tracking

It would be nice if the google_analytics module also included support for tracking Google Adwords Conversions (http://adwords.google.com/support/aw/bin/topic.py?topic=16344)

You can see details about setting it up here:
http://adwords.google.com/support/aw/bin/topic.py?hl=en-uk&topic=16357

Basically, Google gives you the ability to track 'adwords conversions' That is, a user who came to your site through an AdWord click, and navigated to one of your 'convernsion pages' - probably a thankyou page just after a purchase, or sign up (depending on what kind of conversions you want to track). In the Google AdWords admin pages, you can set up several 'actions' (an action being 'sign up for x', 'purchase of y' etc). For each action you set up, they provide you with a unique code snipet to place on the conversion page for that action. As far as I can tell, there are only one things that changes from snippet to snippet - they call it a 'google_conversion_label' As well as this, you must have your own 'google_conversion_id'

An example of a code snippet they provide:

<!-- Google Code for Single Donation IE/INT Conversion Page -->
<script language="JavaScript" type="text/javascript">
<!--
var google_conversion_id = 1069116697;
var google_conversion_language = "en_GB";
var google_conversion_format = "3";
var google_conversion_color = "ffffff";
var google_conversion_label = "QiYYCPWPkAEQmdrl_QM";
//-->
</script>
<script language="JavaScript" src="https://www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<img height="1" width="1" border="0" src="https://www.googleadservices.com/pagead/conversion/1069116697/?label=QiYYCPWPkAEQmdrl_QM&amp;guid=ON&amp;script=0"/>
</noscript>

For reference, the code I put together to insert the correct code for my conversion pages is as follows... , It's horrible as hell as there is hard coded values and no admin interface, but I just needed to get the code on the pages ASAP! :P

function mymodule_footer() {

  $path = drupal_get_path_alias($_GET['q']);

  // Each 'action' has a unique 'label'
  if ($path == 'some/action/thankyou') {
    $label = 'bK93CLeTkAEQmdrl_QM';
  }
  elseif ($path == 'some/other/action/done') {
    $label = '9f-dCM-QkAEQmdrl_QM';
  }

  $id = 1234567845;  // I think this is unique to your adwords account
  $language = 'en_GB';
  $format = '3';
  $color = 'ffffff';

  // Build tracker code for footer.
  $script .= 'var google_conversion_id = '. drupal_to_js($id) .';';
  $script .= 'var google_conversion_language = '. drupal_to_js($language) .';';
  $script .= 'var google_conversion_format = '. drupal_to_js($format) .';';
  $script .= 'var google_conversion_color = '. drupal_to_js($color) .';';
  $script .= 'var google_conversion_label = '. drupal_to_js($label) .';';
  drupal_add_js($script, 'inline', 'footer');
  
  // Insert a link to the external javascript
  $external_js = 'https://www.googleadservices.com/pagead/conversion.js';
  drupal_add_js('document.write(unescape("%3Cscript src=\''. $external_js . '\' type=\'text/javascript\'%3E%3C/script%3E"));', 'inline', 'footer');
}

What do you think about adding support for this into the google_analytics module? The admin interface would need:

1) a way to provide your adwords google_conversion_id
1) a way to define 'actions' - to mirror those you create in your adwords account (name, description, google_conversion_label)
2) a way to associate one or more conversion pages with each action (probably a textarea just like the pages exclude/include for the analytics code)