No I haven't seen them. I got about 13 or so westerns on my netflix queue and another 4 or 5 on my blockbuster online queue as well so eventually I'll be watching more of them.
Now will I enjoy them?
Only time will tell....
I'm still trying to think of the movie to get you in to them. You seen the Sergio Sollima ones like The Big Gundown or Faccia A Faccia? Worth seeing if you can download them. Like most genres much of the best stuff is unavailable in the US.