Rant: Motorcycle/Scooter Riders in city

[BeStRaFe]

now,
im normally one to be a little quick behind the wheel, overtaking where needed (and sometimes when not) but i have become to get very annoyed at motorcyclists and vespa/scooter riders in general..

now. here is where the story comes in... in the past 3 weeks.
i have hit, not nearly hit 2 riders being absolute idiots and had a great number of near misses in the 8 months i have lived in the city (sydney)

what is annoying me...
a)chopping in between lanes, i have 2 major scratches from the handle bars of riders who have tried to squeeze between me and another car, and have just ridden off.
b) overtaking cars stopped in traffic OVER DOUBLE LINES WITH ON COMING TRAFFIC! this is just dangerous for them and other around as its just monumentally stupid.
c) overtaking everyone to be at the front of the lights...
if the bike is quicker then me, in most cases i dont really mind,,, but when 50cc vespas do this, its just making me angry...

now, the 2 incidents,
both where the rider was not ment to be, and in my blind spots... im not looking for a object in my blindspot when there is not ment to be one...

once turing into a side street from a main road.. the bike was jumping up the inside... my rear door and drivers door damaged quite bad... the vespa in question totaled and the rider not much better off..

second time me turning into another street (right turn at any time kinda thing with a pedestrian crossing... a bike going up the inside to get infront of the lights... rider shaken (charged with neg driving, not indicating and a few other things) and bike scratched...

now... the laws need to be tougher on bikes for this sort of behaviour, its just reducilous!!!!
who is with me!