Dolphin custom search engine a custom Dolphin search engine (custom google search) which search modmysite, expertzz, dolphin trac and modmysite wiki
PSPaD Good all round freeware editor, comparable with ultraedit32
ExamDiff For filechanges only, though have a look at PSPaD which include file comparison
mysqldiff utility for comparing MySQL database structures
DataDiff DataDiff is a utility for comparing the contents of two identical sets of tables in MySQL and returning the rows that differ between the two.
SQLyog Administrate MySQL Databases Using a Free MySQL Admin Tool
Searchengine for MySQL mailinglists Handy for finding MySQL answers
FireFTP FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
WinSCP3 Secure shell access to your server, which allow scriptet upload via WinSCP3
Basecamp From 37signals, Free account available for one project. Milestones, todo list, etc.