Yeah, you bloody lucky Americans get to play so many games while we have to spend $100 on modchipping >_>
I use Wiikey myself, though you need to have the earlier version of the Wii to have it working. Seing as you probably live in Australia, check this page to find places that do modchipping for Wiikey. Also check here and here for info on the Wiikey.
I recommend that you ring all of the shops listed for prices and whatnot. Also, the discount "code" is expired, don't bother. I only got mine chipped like a week ago, playing my JP RD that I bought in Japan for $20 =D