You will need a preamp. This will amplify the signal of the microphone up to the signal level that your laptop's soundcard needs. It will also have a jack that can accept one of those big plugs, also known as XLR plugs. You can get a cable or cable and adaptor that will allow you to plug the output of the preamp into your soundcard's line in jack. ART, Behringer, and M-Audio are some complanies that make inexpensive one channel preamps.