AppRocket keyboard launchpad (for Windows) http://www.candylabs.com/approcket/ (trial version, but too cool not to mention here)
ReplaceEm Windows text search-and-replace program (Probably the easiest, fasted installing, and the most intuitive program of its kind I have come across.)http://www.orbit.org/replace/
MWSnap Snapping (capturing) images from selected parts of the screenhttp://www.mirekw.com/winfreeware/mwsnap.html
Textpad Powerful, general purpose editor for plain-text fileshttp://www.textpad.com/
FileZilla FTP client and serverhttp://filezilla.sourceforge.net/
PrimoPDF Convert to PDF from any application via printinghttp://www.primopdf.com/
Cygwin Linux-like environment for Windowshttp://www.cygwin.com/
Sysinternals Advanced system utilities for Windowshttp://www.sysinternals.com/
WinMerge Visual text file differencing and merging toolhttp://winmerge.sourceforge.net/