Cyco, CD,
have seen both Sabre and Navtech (including the new Aurora). I agree that Navtech is pretty neat. Qantas uses SITA right, so are we talking Ansett?
From what I heard Navtech has a branch in the U.K. now. As does Jeppesen and, of course, SITA. Dunno about Sabre and who of the big ones is using it (would be intersting to find out). Would also be interested how Navtech Aurora is doing (if I am not mistaken they read this group

).
Guess when you will be arriving you'll see the same mixture as is Oz/Asia with the big ones.
SITA and JAS are pretty common among major airlines. Small corporate outfits use PPS (a Danish system).
However, you'll also find operators using Onsight or Lido. SWR has an own system (dunno whether they are already selling it).
Well, good luck.
fcit