The search functionality of amaroK is fantastic, but I'd like to be able to save my searches because some of them I use quite often. Perhaps by setting up a tab or something whereby all files in the tab adhere to some filter (search) criterion. I haven't been able to figure this out...is it possible? Is there a script that can do this?

you could have a look at smart playlists - doesn't sound *quite* what you want, but you should be able to at least get close.