Open Source

http://www.7-zip.org/ For RAR files

http://www.openoffice.org/ Production suite

http://www.pidgin.im/ Instant messenger

http://gimp-win.sourceforge.net/stable.html Digital minipulation

http://www.gainward.de/support/support_uk.html GPU control

http://www.winamp.com/ Media player

http://www.ntfs.com/iso-burning.htm .ISO burner

http://www.mozilla.com/en-US/firefox/ Browser

http://www.reallyslick.com/ Screensavers