Hi!
Having seen the integration that some people have done to include
imgmap as part of Joomla and Drupal, I wrote a WordPress plugin that
uses imgmap to create imagemaps out of any image archived on
WordPress' Media Library (or allows you to add new ones) and generate
the appropriate shortcodes to use them inside any post, page, or
widget.
If you're interested in testing it out, you can get a bit more
information on it from my blog:
http://gwynethllewelyn.net/gwyns-imagemap-selector/