Nice collection - you've pretty much got the Rollei and Yashica's covered! It's good to see I'm not the only one with this particular taste (the lavender 44a sounds neat!). The other 127 TLR to look out for is the Sawyers Mark IV, or Primo Jr - they're both the same camera, just rebadged. They're both made by Topcon.
To answer your question from another thread: The Exacta VP's were introduced in 1933, and are pretty much the origin's of the modern camera as we know it: they were the first SLR with focal plane shutter, interchangable lenses, and lever wind-on. Basically if you put a pentaprism on them, they'd be indistiguishable from anything we had up until the mid 70's.
Of course they led the way for the exacta 35mm which are very well documented. However most of the Exacta pages pretty much ignore the 127 origins. The only site which documents them in detail is:
http://www.pacificrimcamera.com/pp/ihagee/vp.htm
Focal plane shutters don't tend to age very well, so if you get one I'd expect to have some work done on it. I got mine a few months ago - I was told it was in great condition, which is was cosmetically, but it still needed to go in for work on the shutter. However I should be getting it back soon, and I can't wait to get out and try it.
APUG is a great hand-out, but it would be good to have some of your stuff on
www.onetwoseven.org.uk too...
Ian