Hey dude good to see another aussie here,
I pre-ordered SMG after I watched the IGN review and just from watching that I'd say definately get it, it reminds me of Super Mario 64 but much better, especially with the remote and nunchuk. Watch the IGN video review of Metroid Prime and I think after seeing how the game works with the remote and nunchuk you will definately want to get it. It rates pretty highly too.
I too am waiting to find out more opinions about NBA 2008