The only ones that I would add are the Mexicans from Boot Hill (quite useful for medium-late period Spanish) I am waiting to see what the figures in Summer uniforms recently mentioned in the news section on the Boot Hill site are wearing.
The main problem I have is that I dont think all these ranges work very well together because of differences in height and "heft". It is difficult to judge how big these are but looking at the picture of the one that the chap is holding and comparing when I hold a figure in the same way I think that they are about the size of the Boot Hill figures (at the larger end of "28mm").
I am certainly looking forward to seeing more about these on the Blaze Away site in the New Year.