Applications
p7zip
p7zip is a port of 7za.exe for POSIX systems like Unix
(Linux, Solaris, OpenBSD, FreeBSD, Cygwin, AIX, ...), MacOS X and also for BeOS and Amiga.7za.exe is the command line version of 7-zip, 7-Zip is a file archiver with highest compression ratio. Since 4.10, p7zip (like 7-zip) supports little-endian and big-endian machines.
System Setting
KDE 4 System Settings
System Settings is an improved user interface for configuring the desktop and other aspects of the system. This package also contains a few modules for configuring appearance of KDE 4 applications.
Homepage: http://www.kde.org/
Avant system navigator
A MacOS X like panel for GNOME
The avant-window-navigator is a MacOS X like panel for the GNOME Desktop written in C. In addition to launchers that can be dragged onto the bar, it features a taskbar that behaves similarly to the Mac OSX dock. The window navigator uses the composite extension for transparency and other effects.