Are you plugging it straight into your computer, or into a mixer or other audio interface first?

If you are just plugging it into the 1/8" microphone jack on your 'puter, then your options are pretty much limited to what you can find at Radio Smack...which won't be anything terribly great. If you have something between the microphone and your computer (pre-amp, mixer, whatever), then there are plenty of great microphones out there for any application. Professional ones usually aren't cheap. I can make suggestions for those if that's what you're looking for.