The free computer aided translation (CAT) tool for professionals
OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects.
RText is a customizable programmer's text editor written in Java. Some of its features include: syntax highlighting, editing multiple documents at once, printing and print preview, find/replace/find in files dialogs, undo/redo, and online help.
FigTeX manages images and their easy inclusion in LaTeX documents. Similar to BibTex, the image information is stored in an external file and is imported into the document as needed. It comes with a comfortable GUI for managing the image library.