WiFi is now fixed and working.
Config.txt already amended.
Added 'dwc_otg.speed=1' to cmdline as per AIO Support page 1 by Helder.
Previously i had added this as a new line and not as part of esxiting line.
Also added the wifikeyfile.txt to boot partition as expected my keyboard not to work. It does work however.
Microsoft Arc Bluetooth keyboard. Bluetooth receiver in my 2nd USB port.

WiFi Dongles that work with my GBZ:
1) http://www.ebay.com.au/itm/111838168586 ... EBIDX%3AIT (Bought in Aus)
2) http://www.ebay.co.uk/itm/Wireless-Wifi ... SwiDFYRTRd (bought when in UK)