yeah it's expensive but so they all are, but I am using the trial version and I noticed a funny quirk with it everytime I save with it it goes down by 1 save till it gets to about 20 saves left then the next time I save it is back at 25 again! I have it installed at home and at work from seperate downloads from the same rhino site and both copies do the same. the only other thing that doesn't work is cut n paste but there is a copy command which does that anyway. I picked up using Rhino quite quickly but I am by no means an expert as I've been finding out, it might take me a couple of hours to whip an item up but it can take days to make it poser ready!