NeoOffice

NeoOffice is an alternative to OpenOffice. At one point in time OpenOffice would not run natively on Mac OS X so NeoOffice was developed from the OpenOffice source code. Now, there is very little difference between the two.

Description from website:
NeoOffice is a full-featured set of office applications (including word processing, spreadsheet, presentation, drawing, and database programs) for Mac OS X. Based on the OpenOffice.org office suite, NeoOffice has integrated dozens of native Mac features and can import, edit, and exchange files with other popular office programs such as Microsoft Office.

http://www.neooffice.org/

{mosmodule module=MozillaFirefox}

{mosmodule module=GIMP}

{mosmodule module=VLC}

{mosmodule module=Scribus}

{mosmodule module=Inkscape}

Cyberduck

I use Cyberduck for uploading files to web servers via both FTP and SFTP.

Description from website:
Cyberduck is an open source FTP, SFTP, WebDAV, Mosso Cloud Files and Amazon S3 browser for the Mac. It features an easy to use interface with quickly accessible bookmarks. The outline view of the browser allows to browse large folder structures efficiently and you can quickly preview files with Quick Look. To edit files, a seamless integration with several external editors makes it easy to change content quickly. Both Amazon CloudFront and Cloud Files from Rackspace can be easily configured to distribute your content in the cloud. Many OS X core system technologies such as Spotlight, Bonjour and the Keychain are supported and a large number of translations makes you feel at home.

http://cyberduck.ch/

Smultron

Smultron is a free text editor for Mac OS X which is both easy to use and powerful. It is designed to neither confuse newcomers nor disappoint advanced users. It should work perfectly for a whole variety of needs - like web programming, script editing, making a to do list and so on.

http://tuppis.com/smultron/

MacPorts

The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11 or Aqua based open-source software on the Mac OS X operating system. To that end we provide the command-line driven MacPorts software package under a BSD License, and through it easy access to thousands of ports that greatly simplify the task of compiling and installing open-source software on your Mac.

http://www.macports.org/