Feed(Aggre)gator, or feed-gator, is a plugin for WordPress that allows users to take input from a bunch of RSS feeds and display the latest items, listed either by feed or by most recent, in a widget.
As of the release or 1.0.1, users can customize the listing of items with the author handle and date published through the ‘Widgets’ menu in WordPress. Users also have the option of having links opened in a new window.
Users can also easily edit feed-gator.php to replace author handles with full names and to give li items in the list a css class based on the items author handle.
You can download the .zip file of the plugin here.