It's the little things...
Dennis Cranston recently posted patches that HIGify the ell/nautilus error dialogs. This has been one of my pet pieves for quite a while.
Here's a before and after example of one of the dialogs:
The only thing I can say against it is that the ... would be better placed closer to the start of the location string so that one can see the filename. This really is a great improvment. Thanks Dennis.