About how long does it take before NetBSD 1.5.2 CD sets will be available, and
will there be additional CDs offered with the packages?  Or will the packages
be used from previous CD releases?

On my current old computer, NetBSD 1.5.1 boot was hanging, and same result with
NetBSD 1.5 generic kernel and two test install kernels from 1.5.2.  I might
download NetBSD 1.5.2 generic kernel to use with DOSBOOT just to see if I get a
better result.