Sorry to hear that mate. Really sucks. Been in an accident with my car before, never nice.
Ive actually been in a situation with my old Mazda 323 too. I was cornering and suddenly the rear kicked out. Now this is a 1986 1.6l automatic front wheel drive. I had no idea what to do and the car slid for a bit (probably not a bad drift) but because I overcorrected, ended up spinning it around the other way when it got traction and spinning out. Facing the opposite direction to traffic in the middle of stud road.
Now while I wasn't going slowly, I definately wasnt driving at excessive speeds and definately not taking the turn any faster than I had in the past. The rear just suddenly slid. It left like it slipped on something. Im almost certain there was some oil on the road or something, as for my old car to react that way, it wasn't normal. It gives you one hell of a shock, thats for sure. We just always need to remember that the roads themselves arent always a smooth surface and especially at night on road, it can be impossible to see dangers.
Hopefully it is fixed promptly for you. I had the body work done on my R33 by Imperial Finish Body Works on centre rioad in springvale and they were great. My best mate has used them several times. See Murray there. I let just cars choose the mechanic for repairs, and they chose Carrera Motors in Nunawading. Interesting story there, but thats for another time.