Text editors
My preference is for jEdit, although each platform tends to have it’s own best text editor. jEdit is Java based, so a little slow to start, but for a coding session it’s auto-complete and numerous pluggins make like easier.
jEdit Macro(s)
Without Dreamweaver, I find HTML tables a pain to do, although if you are transferring from a spreadsheet to jEdit, this tablise macro will convert tabs to table cells, and end-of-lines to table rows. Bit rough, but speeds it up (use on a blank buffer with only the intended content).
Graphical editors
For batch optimising pictures, I use Gallery Mage, a Java based program that opens a folder of pictures, and exports them for use with Simple Picture Gallery Manager and other applications.
Macromedia
The macromedia studio is also available for Mac & Windows, I tend to use Fireworks for optimising images.
SVN
An SVN command I keep forgetting is how to tag a release / version, which is basically a copy, so that on one line:
# svn copy http://mysite/svn/myproject/trunk
http://mysite/svn/myproject/tags/version-x
-m "tagging version x"