If you start a sticky might I suggest the first post be some of the manufactures to look for. Would be handy for those of us with little awareness of our axes
It's hard to say which ones to go for , there's plenty of good axes out there that were unbranded , Gransfors Bruk for example made tons of unstamped heads for export .
Best I can say is to stay away from anything that had a fiberglass handle and one that has been beat to death , the prices on the Bay seem a little high so I do the local yard/estate sales , local buy and sell ads and word of mouth to local pickers .
I try to keep this hobby as cheap as I can , 5$ to 20$ for a head is reasonable to me and handles range from 5$ to 20$ for handles but the nice Scandinavian handles range from 20$ to 40$ .