Thanks to everyone for the replies. I hope you can stand a few more
questions.

I looked at all of the suggestions and started looking more at the yews
suggested by David. One yew that caught my eye was Taxus x media
(Anglo-Japanese yew, if I remember right). I found it available here
http://www.musserforests.com/prod.asp?p=DET

This seems to fit my requirements. Their price is 25/$75.00. Does
that sound like a good deal if I can't find a local carrier?

They list the spread as 3-5'; so should they be planted at a spacing
3-5'? Or should they be planted closer to ensure a nice dense growth?
If a 3' spacing then 25 plants would be good for about 75' of hedge
row? Or I could go a 4' spacing and get 100' row

Thanks again for all the help.