[ Ken answered most of your questions--I'll just fill in a bit. ]

> In addition, I have been considering installing a DayStay Dig.,
> PowerCard 601/100 Upgrade into the box along with a 32Mb SIMM (to bring it
> up to 36Mb).

The 32MB SIMM will help your machine in general, I'd imagine.  :-)

>      1. Can I run NetBSD on this machine?

Not yet.  Hopefully in the relatively near future (months, not days).

>      2. Would I be advised (or ill-advised) to upgrade to the DayStar h/w?

It will not help NetBSD, but it shouldn't hurt it, either, as you should
be able to disable it.  At least, that is true of their m68k accelerators.

>      3. Does this environment directly support the GNU C/C++ compilers?

Well, you can download, configure, compile and install the gcc
distribution, but as Ken mentioned, that's the compiler that's
part of the main distribution, too.

-allen

-- 
  Allen Briggs - end killing - briggs@bev.net ** MacBSD == NetBSD/mac68k **
   Where does all my time go?  <a href="http://www.netbsd.org/">Guess.</a>