yep, you need a sensor bar for the wiimote cursor to move on your pc screen. The sensor bar doesn't actually transmit any information to the pc, the wiimote just uses it to track the location of the cursor. Because of this you can even use 2 candles as an infrared light source. You can't use the wired sensor bar that comes with a wii on your pc as you need to plug that into a special port on the wii for it to work, so you can either use a wireless sensor bar or a usb sensor bar. personally i would suggest buying a usb sensor bar as it can run off the power from a usb port on your pc and you don't need to constantly change batteries, saving you a lot of money. Here is the usb sensor bar i have, it works great! http://www.gamenewscenter.net/7-11846801-B002XVZW52-Nextronics_Sensor_Bar_HD_USB.html. you can buy one of these off amazon for around 20 USD.
PC Specs
MOBO: ASUS M4A88TD-M
CPU: AMD Phenom II X6 1055T [1.356V @ 3.5GHz]
GPU: MSI GTX 570 Twin Frozr II [1.1V @ 900core/2150mem]
RAM: 8GB Dual Channel DDR3
HDD: Seagate Barracuda 1.5TB
OS: Windows 7 Pro 64 bit
YouTube Channel
MOBO: ASUS M4A88TD-M
CPU: AMD Phenom II X6 1055T [1.356V @ 3.5GHz]
GPU: MSI GTX 570 Twin Frozr II [1.1V @ 900core/2150mem]
RAM: 8GB Dual Channel DDR3
HDD: Seagate Barracuda 1.5TB
OS: Windows 7 Pro 64 bit
YouTube Channel
