Help Software provides an amazing set of Admin tools for IBM Lotus Notes/Domino Administrators. And for what they do, they are amazingly priced. One of our favorite apps from them is Power Tools. With 139 functions all bundled into 1 admin tool, it is the quintessential Swiss Army Knife for admin tools.
We like it so much, and have used it so much, that we became a reseller. If you have questions about whether it can do something, our admin team can probably tell you off the top of their heads.