Phex is a multi-plattform and spyware free gnutella client. All you need is a operation system that offers a Java Runtime Environment. It is completly free, open source and without spyware. It offers a research functionlity that will find new download candidates automaticly for you. You can even specify the search terms that are used for research. It will look for files that match the search terms and the file size of the download. Combined with the resume download feature across hosts, it offers you a very powerfull download engine.