Is there an way of modding OSX so that it behaves a little more like Windows 7. Specifically I really want to be able to press BACKSPACE and for Finder to show the previous folder... just like Windows and Firefox both do.
I hope that's clear.
While the solution offered by barbaz is a decent one, there actually is a perfect one :), which removes the limitation that doesn't allow you to use Backspace in text fields in Finder (e.g. when renaming files, or typing in the search field).
You can press CMD-[ (as shown in the "Go" menu). Using the regular way from there (Keyboard Preferences -> Keyboard Shortcuts and assign a new shortcut for the "Back" entry) doesn't work since the "Keyboard Shortcut" field does not accept the backspace character. But you can:
Then edit the file
Now, if you restart Finder (using
However, as pointed out in the comments, the backspace key is probably not usable in the keyboard dialog for a reason, since using it as a shortcut will trigger the action when you have the cursor in an edit box, where you'd want backspace to remove characters.