(Getting the hang of this blogging thing... Rather than post an entire SQL script as a blog post, I've created a page for all my scripts. I'll add a blog post whenever a script is added or changed.)
The latest and greatest version of my IndexDemon.sql script (formerly, Index_Analysis.sql) is now available. It examines all the indexes in the current database and emits DML code to correct any problems it finds. It makes no changes to your database itself - you have to copy and paste the emitted SQL - seemed safer.
This is a work in progress, so the usual caveats apply: do not run this on any database you want to keep, for example, a production database, or any database that isn't backed up. Comments welcome!