My usual weigh in day is Saturday so I weighed myself this morning (I know it's a day later) as well so I could post my results.
SW: 80.6kgs/177lbs - September 4, 2010
CW: 79kgs/174lbs - September 13, 2010
GW by xmas: 66kgs/147lbs - December 25, 2010
I also find that the scale gives me a few different numbers depending on where I stand. I try to stand in the same spot each week but I don't think it really makes a difference. I just test my weigh about 4-5 times and go with the number that comes up the most.