Thanks for the info.
I just bought the WNDR3800-100AUS.
http://www.tech4u.com.au/product_inf...ucts_id=278488
and there's some links to the Gargoyle for it here:
http://forums.whirlpool.net.au/archive/1893182
So since my Billion is a modem/router, and this is just a router, do I need to plugin the router to the Billion via cable, and turn off Wifi on the Billion?