http://everythingcrm.net/2012/08/16/revised-list-of-useful-dynamics-crm-2011-tools-utilities-scripts-controls
Others not yet appearing in the above listing:
- Web Resource Bulk Upload
- Ribbon Workbench Tool
- Instance Adapter
- CRM Express Security Helper
- Form Query String Parameter Tool
- Ribbon Browser
Useful techniques (don't necessarily involve the use of a "tool"):
http://social.technet.microsoft.com/wiki/contents/articles/2490.microsoft-dynamics-crm-2011-development-resources-en-us.aspx