OSX Starter Software
Here's a list of recommended software for OSX for those new to the OS. Not this is aimed at a core list of useful utilities, rather than a massive list, so keep additions that are useful to Redbrick folk who have just got a Mac.
General Software
[iTerm] - An alternative to the default terminal.app that comes with OSX
[Fugu] - SCP client, to allow to upload files to Redbrick
[Quicksilver] - For app launching. Like spotlight but better
[Camino] - Mozilla based browser, tailor-made for OSX
[VirtueDesktops] - For Multiple Desktops (Will not be needed once Leopard is released)
[Adium] - A free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
[Fink Commander] - A GUI for [Fink] for installing tons of open source applications onto your system quickly and easily.
[A dashboard widget of the o2sms script, by mackers@netsoc.
System Tools
[Parallels Desktop] - Software to allow you to run Windows and others OSes under OSX
[Bootcamp] - Sets up a dual boot configuration with Windows or OSes