Yep, I'll look into all of those.
I'm using PostgreSQL more and more in my own work, and am anxiously
awaiting 7.1 for all of the features you mentioned. Until now, the
biggest reason for me not to use PostgreSQL has been the 8k tuple
limit. But the more I use PostgreSQL, the most I'm totally impressed
by it. When 7.1 comes out, I think that I'll basically be telling my
clients to use either PostgreSQL (for nearly all jobs) or Oracle (if
they need all sorts of fancy-shmancy features).
As for ACS 4.0, I wish that I had time to look into it more,
particularly given the Java abstraction layer. But you can be sure
that I'll be looking at it in the near future (personally and in
print), and that I can't wait to see things get a bit more -- um --
organized...