I am also new here, and thankful for all the information that has been presented in this thread. I am glad to see Greenberg here steering the discussion, as it seems that several of the original posters are no longer with us.
I reside in Ontario, Canada, and am seeking information on how to acquire the necessary equipment in my area. A lot of the items posted in this megathread are no longer available. Sourcing Nitrogen/Argon here seems to be a little tricky. If anyone has advice on this, it would be appreciated.