Great pics, and I'll have to jump in on the bandwagon, I own all of Nik's plugins and I think they really make LR/PS complete.
Silver Efex is awesome for anything B&W, but I actually have both version 1 & 2 installed because of the different ways in which grain and the tonal range of the image is handled in each of the versions.
SE2 is definitely faster, less crash prone, and it's easier to get the right look; but only when editing "inside the box", it's algorithms are actually less suited for extreme and experimental editing. It's highlight handling is somewhat broken as you can't "force" it to make the highlights nearly as grainy as the mid-tones (unrealistic but done right it looks good), as it is now highlights are almost always free of grain even if you limit the levels beforehand, and if you do get it to that point, some weird pattern sets in.
Couple pics from a recent trip to Israel:

U-points and local controls make it really easy to adjust the brightness, contrast and details of every object.