Best of FREE Mac Software: System Settings

Deeper is a personalization utility that allows you to enable and disable the hidden functions of Finder, Dock, Dashboard, Exposé, Safari, Login window and many Apple’s applications…

UNO derives from the Latin word for one and stands for “as one”.
*UNO is the root of Unity.
*UNO is a theme that brings the sunken unified toolbar/titlebar look&feel to every single window on your system (cocoa or carbon, metal or aqua and already unified windows as well).
*On an higher level, UNO’s main goal is to enhance aqua interface consistence, by making all elements look&feel “as one”.
*UNO is aimed to those who want a clean and un-osbstructive interface while keeping the best of Aqua.
*The unity level proposed by UNO does not compromises overall GUI contrast: UNO and UNO shade can be mixed up in order to achieve that usability goal.
*UNO also fixes some Blue/Graphite appearance inconsistencies.

iStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices and Bonjour services with your Mac.

The Unarchiver is a much more capable replacement for “BOMArchiveHelper.app”, the built-in archive unpacker program in Mac OS X. The Unarchiver is designed to handle many more formats than BOMArchiveHelper, and to better fit in with the design of the Finder. It can also handle filenames in foreign character sets, created with non-English versions of other operating systems. I personally find it useful for opening Japanese archives, but it should handle many other languages just as well.
*Supported file formats include Zip, Tar-GZip, Tar-BZip2, Rar, 7-zip, LhA, StuffIt and many other more or less obscure formats. Support for so many formats is achieved by using the libxad unarchiving library.

STUFFIT EXPANDER expands all your compressed and encoded files!
** Access any file, download, or attachment!
** Scan your compressed or encoded files for viruses!
** NEW! StuffIt now allows you to open Zip archives encrypted using the 256bit AES method!

UnPlugged is an application to notify when the power cord of the Mac is unplugged or plugged in. Notifications are done using Growl, or with a Alertwindow, when Growl is not installed.

LiteIcon is an application to change System icons. It also includes a function to restore icons.

Growl is a notification system for Mac OS X: it allows applications that support Growl to send you notifications.
*Why use Growl?
**Control
***Growl offers you complete control over which notifications are shown and how they are displayed. You will not receive any notifications that you do not want, because you can easily turn notifications (specific ones or all of them) off.
**Consistency
***Growl centralizes all your notification preferences into its preference pane – you can control them all from one place, and you know exactly how they are going to behave.
**Ease of use
***When you start up a Growl-enabled application, it will “just work.” Your apps can start displaying notifications right away.
**Powerful
***Growl is very flexible. Notifications can be emailed to you or spoken instead of displayed on the screen.

coconutBattery isn’t just a tool which shows you only the current charge of your battery – it also shows you the current maximum capacity of it in relation to the original capacity your battery had as it left the factory.
*You also get information about the battery-loadcycles (how often did you fully load your battery), the current charger (coconutBattery even warns you if you plugged in a wrong charger for your Notebook) and last but not least information about the age of your Mac.

FanControl : Do you think your MacBook (Pro) is running too hot? Give Fan Control a try then.
*Some MacBook (Pro) are just too hot for daylong use. Fan Control adjusts the minimum fan speed depending on the current CPU temperature. For safety, it leaves the original automatic fan speed control intact.

OnyX is a multifunction utility (maintenance, optimization, and personalization).
It allows you to run misc tasks of system maintenance, to configure some hidden parameters of the Finder, Dock, Dashboard, Exposé, Safari, Login window and of some of Apple’s own applications, to delete caches, to remove a certain number of files and folders that may become cumbersome, to see the detailed info of your configuration, to preview various logs and CrashReporter-reports, to check the Preferences files and more.

AppFresh helps you to keep all applications (third-party and Apple), widgets, preference panes and application plugins on your Mac up to date, from one place. It works by checking the excellent iusethis.com for new versions and lets you download and install available updates easily.