Hi All,

Below is a link to the video of the noise as I drive along.

You can hear me accelerate then the 'whing noise' starts.

http://www.youtube.com/watch?v=YdqIQijnYiM

Changed idle air control valve, back box and air filter

Regards
Mike

Check the wheel bearings for play. Rock each axis, if there is movement it's usually a good indicator of a worn wheel bearing. That's all I can make out from the video you posted, going by the sound it's just a guess.