Oh man I miss hearing Australian accents... Melbourne accents are fantastic and I love how they have the whole e->a thing going on and "Melbourne" sort of turns into "Malbourne". I can't really remember what Sydney accents sound like, probably because that *is* what I used to sound like. I think it was kind of neutral and harmless, not posh sounding, but not bogan either. I don't recall :S
Oh, and yes, NZers are taking over MB. We do need something to keep us occupied when we're not shagging sheep and cavorting with hobbits