Bulk rename utility

http://www.bulkrenameutility.co.uk/Screenshots.php

One iTunes library on multiple computers

http://theappleblog.com/2008/10/13/one-itunes-library-on-multiple-computers/

Simple BASIC

http://msdn.microsoft.com/en-us/devlabs/cc950524.aspx

Put downloading on a timer and other things

http://www.cybershade.us/winwget/

Slim Down Open Office

http://go-oo.org/

The Windows download is 167MB.

Winmail.dat Reader

http://www.kopf.com.br/winmail/download.php

More on handling this sort of thing in Thunderbird:

http://kb.mozillazine.org/Winmail.dat_attachments

Alternative to ERD Commander 2005

http://www.sysresccd.org/Main_Page

Open Source alternative to Ghost that works for Windows, Mac, and Linux!

http://clonezilla.org/

Share Thunderbird Addressbook

http://kb.mozillazine.org/Sharing_address_books

LiveMesh

http://lifehacker.com/398716/live-mesh-connects-folders-and-desktops-across-windows-pcs