lol, nice one. ok there are a bunch for this. kazaa K++ is nice, but its starting to slow down. same with Shareaza. There is also bareshare, and limeiwre. These are all good. Currently i use a very simple looking one, but very powerfull, WinMX.
Or you can go the other route, bittorrent. download abc bittorrent, and go to www.suprnova.org,
and download anything u want