LAN bus - the ultimate mod?
 

So, you can do a number of things here. If you're just working in Windows, you can use the Intel Extreme graphics and get the best battery life possible by using the low-powered integrated solution. However, if you fancy a quick game of F.E.A.R., you can flick the switch, reboot and you'll be running full-speed moibile X700 graphics.

Link
http://www.bit-tech.net/bits/2005/08...tch_bus/1.html