Thanks for the help.
I managed to recover files after deleting them from LimeWire using
Restoration 2.5.14 (link to this software download page @download.com).
The software is real simple to use - and it gives you the resulting deleted files rather quickly. I got back a long list, 80,000+ files, but it only took me a few minutes to scroll the list and identify the specific files I needed. Foe efficiency, after executing the search command, you should sort the files by size. That got me most of the mp3 files grouped together, more or less. Then you need to restore the files one by one, which takes a few moments - but than it can be rather quick if you copy them all to the same folder.
Thanks again for the help, and good luck to others who were foolish enough (like me) to delete the files...