I believe MIRC has unlimited trials also. You may want to include a desktop search category (Google, Yahoo, MSN). Also, Google Reader (http://reader.google.com) and Bloglines (http://bloglines.com) are free online RSS readers.
Thnxs 2 all who made this list possible. Very useful stuff inhere. Wil check my own tools directory when i am home, maybe there is something which i can add. (doubt it, cause this is a very big list here)