3d scanner?

I would like to 3d scan and then mill small objects. Has anyone purchased an actual 3d scanner? What did you buy, what would you buy next time! I would like to scan small objects like coins. Though they have very little depth, when they are enlarged there will be height. Good resolution is important.

Thanks, David

If I make them larger then it will allow for inflation!

Sawdust,
I feel that Andy has the right idea here, you probably want to try and just design these by hand if your budget is tight. Low cost 3D scanners really won't pick up the details you would be looking for on a coin. The lower cost 3D scanners work OK for large objects, but they really wouldn't give you much usable data on anything small. I feel you would need to spend quite a bit to get a scanner that would pick up the detail that you are asking about. A scanner with that resolution is going to be anywhere from 20k-50k depending on it's age and features.
Thanks