First I started looking at the ZigBee:
ZigBee
But even the ZigBee is pretty pricey, and with a ZigBee, I'd need an adapter for the host computer. I have a couple wii-motes for the SOMba project, so I wondered if I could use the Wiimote as a Bluetooth transmitter for an Arduino:
HOWTO make your own Wiimote peripheral
Wiimote as bluetooth transciever for an Arduino
Ardwiino: bluetooth + accelerometer for 40 USD
wiire.org
wiimote bus
And some more interesting related links:
...hack a Wii Nunchuck
Johnny Chung Lee > Projects > Wii
Wii Nunchuck Arduino pan and tilt camera
Read wii nunchuck data into arduino
?WiiChuck? Wii Nunchuck Adapter Available
MEMS Sensors Breathe Life Into Wii Controller
Coding for Wiimote - arduino interface
Wiimote as cheap bluetooth transciever
using the aref pin..
analogReference(type)
How to control Pleo wirelessly using Wii nunchuck
Wiimote Pan Tilt Control
Wii-mote guts
Wiimote modifications