One caution on hardware planning intending to upgrade later to sbs2008:
IT IS A 32-BIT to 64-BIT OS CHANGE!!!!
In all likelihood, this CANNOT be an inplace upgrade like from SBS2000->SBS2003. Current WS2003 is more similar to XP in terms of codes. Although Vista took a lot of codes from WS2003, there are significant differences. And when you factor into a 32-BIT to 64-BIT change for any MS OS, you are looking at a complete reinstall........ (I guess Linux wins in this regard.....)
What does that mean practically? For migration from SBS2003 to SBS2008, you are looking at a complete reinstall. And unless some miracle happens, it probably follows the route of adding a secondary domain server, synchronizing with the PDC, assuming all the roles, demoting the old PDC and promoting the new server to PDC, ..... etc
In other words, to do this properly, you will most likely need a new separate machine......
I am not on any of the SBS2008 beta (yet anyway) so the above is just an educated guess. I currently run SBS2003 SP2 at home and am holding off upgrading the server and I think I will need a second (new) machine for the migration.
Look at the migration plan for WS2008 from WS2003. There is NO INPLACE UPGRADE PATH from WS2003 32-bit to WS2008 64-bit.
Yes this is a complete headache for hardware platform planning if you are looking for upgrading to SBS2008 in the future while you need SBS2003 now..... Since you need 2 machines for te migration anyway, you may just as well ignore SBS2008 at the moment and get the bare minimun of what you need now for SBS2003 and save for the later cutting edge hardware upgrade (or rather purchase) for SBS2008 when the time comes......
My worthless 2cents......
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