We all know that Raspberry Pi is miniature piece of hardware wonderfulness. Its technological potential is only limited by the users imagination.
OpenELEC has come up with a real gem. They have created an Open Embedded Linux Entertainment Center, OpenELEC, which for the first time has been ported to ARM based technology. It's a linux distribution built from scratch that provides a platform to turn your Raspberry Pi into a complete Xbox Media Centre (XBMC).
Download this piece of linux software onto a USB and then connect to your Raspberry Pi. Boot from the USB and you are served up XBMC in all it's home media centre glory.
This software is free so combined with the Berry tech you have a home media center for £30!!