I'd duplicate my lathe spindle nose: thread and collets. Then you can easily move work from the lathe to the indexer on the milling machine.
72 will give you a good selection, and I think you're right -- it will most likely take care of 99% of anything you want.
I just submitted an article to HSM describing how I converted an extra lathe headstock into a dividing head. It's the same as my lathe headstock, so I get the duplicate spindle nose, etc. Assuming they accept the article, if past experience is any indication it ought to be published in about 2 years, so stay tuned....
[This message has been edited by SGW (edited 05-04-2002).]
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