radmind is a suite of Unix command-line tools and a server designed to remotely administer the file systems of multiple Unix machines.
ramBunctious 2.0.x provides basic RAM disk functionality for OS X, including being able to read from and write to RAM disks originally created using ramBunctious 1.x on OS 9 or below.
RapidoSMTP allows you to turn on the Postfix SMTP server built into Mac OS X, which will allow you to send mail from from any applications like Apple Mail or Microsoft Entourage without using the SMTP server of your internet provider.
rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. It also provides an easy way to enter and explore the EFI pre-boot environment.
SleepWatcher is a command line tool (daemon) for Mac OS X that monitors sleep, wakeup and idleness of a Mac. It can be used to execute a Unix command when the Mac or the display of the Mac goes to sleep mode or wakes up or after a given time without user interaction.
SMARTReporter is an application that can warn you of some ATA hard disk failures before they actually happen! It does so by periodically polling the S.M.A.R.T.-status of your hard disk.
SmartSleep.prefPane is a preference pane that dynamically sets the sleep state of your machine. It?s a successor to Hibernate.prefPane.
SquidMan is a graphical installer and manager for the Squid proxy cache. It is designed to operate as a "personal" proxy server.
The Super Sleeper applicaton allows you to quickly change the type of sleep that your Intel based Mac performs when it goes to sleep.
sing this application you can start/stop the TFTP service on your Mac and change its working path, that's where the files are sent to and received from by any TFTP client (e.g. a Cisco router or switch).
Theremin is a MPD client for Mac OS X. Its major advantage over other MPD clients that run on Mac OS X is that it is written in its native toolkit, Cocoa.
Tiger Cache Cleaner
(shareware) Tiger Cache Cleaner is a utility designed to provide easy access to numerous OS X maintenance and utility options.
Tweak Freak is a system configuration/maintenance tool.
volcheckD is a small commandline daemon which checks for a fileserver-volume on all locally mounted volumes. If the volumename/ mountpoint can not be found it will be remounted from a fileserver.
(commercial) Warpcore Drive is a real-time dynamic system optimization tool that uses predictive simulated annealing and a neural network architecture to maximize application and operating system performance.
Weblock provides a simple user interface for configuring user, group, and IP-based access restrictions for Mac OS X's built-in webserver. With it, you can instantly configure any folder shared via your website to require a password, or require the visitor to be coming from a specific web location, or both. Weblock even supports location ranges and grouped users.
XPostFacto is a utility which helps to install and boot Mac OS X, Mac OS X Server, and Darwin on certain unsupported systems.