Do you have a player that can play region 2 discs? If you do you can order a brand new copy of the Japanese version with both the American dub and the original Australian soundtracks for about $17 + shipping from Japan (so a total of around $25 I think). Here's a link: http://www.cdjapan.co.jp/detailview.html?KEY=DLT-11170
There any way to hack your DVD player to play other regions? Panasonic CV51 for instance? Its a hassle not being able to play other region discs, its not like I'm going to import any discs other than the odd one like a cool Australian dialouge Mad Max.