Microphone in Arduino

Hey,
i'm new in arduino and i want to know how can i connect a microphone in arduino.
I want this microphone to collect sound signals (like bells rings) and analyze it.
Can someone send me the harware that i need?
Thanks.

http://lmgtfy.com/?q=arduino+microphone

you are the smart one in this forum?
Thanks btw the first link helped me.

One of the major things everyone seems to glance over in their oh-so clever microphone hookups is the anti-aliasing (low-pass) filter. It’s important that you band limit the input of the microphone to be workable with your A/D depending on what sampling rate you are using, desired results, etc…