Great list. The fact is this list would not be necessary if Netflix had better categories and sorting tools -- but they don't, and it is.
It's really nice to have a link to SD right there too, which they would never have on Netflix. Hopefully they will get more spaghetti westerns online, because having these films on instant view can really open up the genre to a new audience. Watching Django on Netflix instant view some time ago and being blown away is what got me hooked on spaghetti westerns in the first place.