which Bluetooth module to use?

I want to use a Bluetooth module to send 16bit words from an arduino mega 2560 to another Bluetooth device using uart. which Bluetooth module can I use? also could you give me a website to buy it.

http://www.dealextreme.com/p/jy-mcu-arduino-bluetooth-wireless-serial-port-module-104299?item=12
I am guessing that you will ask for some code in your next post :slight_smile:

need help in the pin connections. and yes a small piece if general code will be great...