This one is probably going to sound pretty odd, but how about the ability to search for words within the search results.

Say I'm looking for a fairly rare file and I'm having no luck with a well defined search string, I choose to do a more general search, but come up with hundreds of results for me to look through, I could just click find, type in a word that would be in the desired file name, then it highlights the results.. a bit like the find feature within Firefox, but for Limewire..

Maybe it's just my hangover making searching through results pretty painful right now, but for now I'll struggle on!

Ed