x86 virtualization solution - Qt based user interface
VirtualBox is a free x86 virtualization solution allowing a wide range of x86 operating systems such as Windows, DOS, BSD or Linux to run on a Linux system.
front-end for Wine
PlayOnLinux is a front-end for wine. It permits you to easily install Windows Games and software on Linux. It is advised to have a functional internet connection.
fast, cross-platform audio editor
Audacity is a multi-track audio editor for Linux/Unix, MacOS and Windows. It is designed for easy recording, playing and editing of digital audio. Audacity features digital effects and spectrum analysis tools. Editing is very fast and provides unlimited undo/redo.
Full-featured graphical FTP/FTPS/SFTP client
FileZilla is a full-featured FTP client with an easy-to-use GUI.
vector-based drawing program
Inkscape is an illustration editor which has everything needed to create professional-quality computer art. You can use it to make diagrams and illustrations, technical drawings, web graphics, clip art, icons and logos. A collection of hands-on tutorials show you how to combine lines, shapes and text of different types and styles to build up a picture.
GNU Image Manipulation Program
GIMP is an advanced picture editor. You can use it to edit, enhance, and retouch photos and scans, create drawings, and make your own images. It has a large collection of professional-level editing tools and filters, similar to the ones you might find in Photoshop. Numerous fine-control settings and features like layers, paths, masks, and scripting give you total control over your images.