I was 95.8 kilos and planned on being down to 78. However, when I was at university (20 years ago), my weight was between 73 and 75 kilos. I came across this fantastic article, others may have read it as well.

http://www.pponline.co.uk/encyc/if-y...ome-weight-550

After reading it and having a think, I may have to revise my target to lower than I originally intended.