Ben:
Here is a link to the Flash books Wiley publishes (not just under the Wrox imprint). As you can see there are quite a few that you might consider.
Code:
http://www.wiley.com/WileyCDA/Section/id-WILEY_SEARCH_RESULT.html?docsCount=25&newDocsCount=25&docsStart=26&field=keyword&page=1&queryParser=Simple&queryText=macromedia%20flash&sortSpec=sortableDate%20desc&subject=all
Thanks,
James
James Sample
Director, IT-Infrastructure
Wiley Publishing, Inc.