G'day Graham & Axle, Welcome to the sight guys, You are going to love your bikes, I thought about selling mine but I just can't part with it. Yep they are heavy but they do handle well. As for problems, I have been lucky so far. Every bike or car has some form of problem at some stage. (I also drive a land rover so I know that for sure).
Do you standard checks, get it serviced and ride.
Head shake is probably to me the most annoying thing, I have it on my 04/05 even with new tyres and playing with pressures. But I live with it now, it comes around 60 -70 kmh. weight, tyre pressure, size of tyre, road surface , who knows.