The roadmap is clear now... in the next future we've to be ready to upgrade
our systems to 64-bits.
Yesterday at the IT Forum in Barcelona Microsoft has announced
that while the first release of the upcoming next version Windows Server
family code-named Longhorn will be both 32-bit and 64-bit, the future
update release to that, known as Windows Server "Longhorn" R2, will
bring the complete transition to 64-bit-only hardware. Other future
software, such as the attended Exchange 12 (announced so cool!!) will
be 64-bit only.
This is a signal of movements, the input key for a big hardware transition.
Actually 32-bit hardware is the most widespread and only the software can help
to make the step above: if the software will be 64-bit ready, in the next
future we'll buy only 64-bit hardware.
Be prepared for the upgrade... 