Most interesting in System Utilities

Free
A free app for Mac, by Apalon
Realistic and Flexible Timekeeping Application for Personal Computers
The code-reading utility app
A simple timer app for your desktop
A free program for Mac, by Pocket Bits LLC.

Top rated in System Utilities

iPhotoExtractor Pro b12
Free

iPhoto Extractor copies files from an iPhoto library into a sorted destination...

LockDesktop
Free

Lock Desktop provides one-click security to lock your desktop while keeping your programs and data open.

VDR Stream Switcher
Free

This tool allows you to watch, capture and convert VDR livestreams on Mac OS X.

LastStart
Free

This program helps you track how long your computer has been running, providing an easy way to see when you last opened it.

ArchiScale
Free

Free, open source Mac OS X software that converts distances using a user-defined scale and finds the best scale for drawing on a given paper format.

QuickLook-Fullscreen
Free

QuickLook Fullscreen Gallery is a free plug-in that allows you to access QuickLook in full-screen mode.

KeepSoundAwake
Free

KeepSoundAwake prevents audio hardware from sleeping on Powerbooks running OS X 10.1.2 or higher by playing a "silent sound" every 20 seconds.

MacPorts

The MacPorts Project enables easy installation of open-source software on Darwin OS family (OpenDarwin, Mac OS X and Darwin).

MatchCut

Fast, unobtrusive pasteboard manager that records texts, files, colors, fonts, and more.

MLSwitcher
Free

MLSwitcher lets users assign modifiers for each input language, making switching between input sources easier & faster.

QueueMemo
Free

Simple memo software that displays memos when the application is started.

iDroid Sync Tool
Free

Sync Tool for Mac OS X released, features music/picture sync, Android Music App Support...

DuplicateWindows
Free

Duplicate Windows mirrors any window in Mac OS X live and on-the-fly.

Notifies
Free

App to notify Growl or Prowl of Mac OS X login/logout.

SuspendNow!

This text explains how to use suspend mode without turning off normal sleep.

DoMount
Free

Tool for Mac OS X 10.4+ to easily mount volumes and folders with optional auto-mounting.

Lilypad
Free

LilyPad was a Mac OS X previewer for the LilyPond music typesetting system, now outdated and in need of a developer or replacement.

Askey

Free HEX-to-ASCII converter for Mac OS X 10.3+ which converts WiFi codes.

Disk Velox

RAM disk creator for Mac OS X 10.3+. Version 0.3.1 has no Terminal window opened.

AdminLaunch
Free

Free and open source GUI app that allows you to open apps with root privileges on your Mac, though it is not safe.