But how come no one is talking about all of the requirements for us peer-to-peer folks? (Not so seriously).
P2P will support Vista SP2, Windows 7 SP1, Windows 8
http://amazingcharts.com/ub/ubbthreads.php/topics/53459/Re_6_5_Requirements#Post53459Anyone with XP Main Computers will need to upgrade. XP and Server 2003 on built on the same core.
Also, bear in mind, a lot of the people who were on XP 32 Bit/Server 2003 32 Bit, you may find the printers/peripherals you use in your practice are no longer compatible with the newer 64 bit Operating Systems. Perhaps even some programs. I recommend you guys get Windows 7 as it has XP Mode for free included which should mitigate any potential software incompatibility issues.