Here's another SDX utility which emerged from the woodwork today:
It's a clone of some MS-DOS utility from years back. You can type:
QCD <Dn:><folder name>
on the command line and the program will scan the entire directory tree for the first folder which maches the target name. The matching folder will then become the working directory.
If you specify no parameters, you get a full-screen interface:
You can navigate the tree using the cursor keys, and select the target folder with <Return>. "Speed Search" is what we all take for granted now: you can start typing a folder name and the cursor will actively target the first folder containing those characters as a sub-string.
I can't even find the source code for this one ATM (I wrote it in the late nineties), but it seems to work OK and is great for hard disks with deeply nested directory trees. The program writes a file containing the directory structure to the root of the drive, so it doesn't have to recursively rebuild the tree every time it runs. You can re-scan the tree, of course, if the folder structure has changed.
Edited by flashjazzcat, Sun Oct 10, 2010 10:10 AM.