Heya KGB, I bought a pair of Lottas last year (2010 season). We're also in Australia. I'd say I'm a high-intermediate. I'll ski just about anything, but I take it easy when I'm on blacks.
I'm really impressed with my Lotta's (like, in love with). They've good grip for the hard pack and ice we ski a lot of the year, but they floated nicely enough in the 'powder' we got here (we were at Perisher on a day we had about 30cm in the morning). They were great on the groomers, great off piste. Good in the soft, wet stuff, too.
I bought 156s, and I'm kind of wishing I'd bought 162's. I sometimes think they could be a *little* more stable at speed, but could just be me!
I demoed the Free Luvs, too. They were a lot more forgiving, but very soft... I thought the Lottas were a bit more versatile and agressive, and they kind of push me a bit.
If you're not skiing again between now and the start of the Australia ski season (hope not, though ), maybe try demoing them? That sealed the deal for me, as soon as I skied them i just knew. We went to Jindabyne Sports in the old Jindy shops, and they were really good to us.