aggr allows you to place the contents of an RSS feed into your pages or posts. It is a deeply modified version of the Aggregate plugin of Rob Miller.
Image Control Size lets you have more control over your thumbnails.
Pluginstaller is a plugin-management plugin that eliminates the need to download a plugin archive, upload it to your FTP server and unpack it manually.
WordPress Download Counter keeps track of the amount of downloads for specific files. It will also store the last time the file was downloaded. You can use tags to add the download url or download count to any page or post.