Jay,
In my opinion the Powermatic Model 50 (6") is the best. It was made from the late '50's until about 2002-3. It has a better fence than any of the aformentioned models. I have owned a Powermatic Model 60 for twenty years. It is my favorite 8" jointer of all time. One of my favorite things about the machine is it's fence, and, they used the same fence, size and all on the smaller 50. I picked a Model 50 up in Winchester, TN for a friend who won it on GovDeals. I think he payed $250 for it. They are around but will require a bit of looking. The problem with a 6" machine is that everybody I know who has or had them wants an 8". And then a 12"!. Though I love and use my 8" for 90% of my jointing, I jumped at the opprtunity to buy a 16" Newman a few years back. It is in the restoration queue, perhaps this fall. Now if I could just find a 24".
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