>As I suggested before, a 32Meg root and 128Meg usr and the rest usr1
>sounds good to me.

Hmmm, most machines I install these days (Solaris,NetBSD whatever)
use a single fs for /,/usr and /opt on Solaris I use a 600M root!
Never had a minutes trouble with any of them, OS upgrades etc are
a breeze etc.  And minimizes wasted disk space.  Big fs's like that 
are made (by me anyway) with 1% slack rather than newfs's default of
10%.  If /tmp is going to be a memort fs, then swap is 200-600M depending
on the system.

For NetBSD I use 400M if /var is going to be in /, otherwise 200M.
For machines that are  exposed and need lots of logs I use a 
separate /var of 1-2G.

SunOS used to install an 8M!!! root on SunOS 4.0 and it was virtually 
impossible to fit more than 1 kernel in it.  64M sounds a safer minimum 
than 32M - I hate having to waste time shuffling files around because
filesystems are full.

Most of my machines these days get /,/share and typically a single mount
point for each additional disk.

There is a PR raised against 1.3ALPHA because the install dies if you
don't allocate a separate /usr btw.