I'm looking to buy some new servers for upgrading from NetWare 6.5 to OES 11 and from GroupWise 8 to GroupWise 2012. I would like the specs to be better than the minimum and even better then the recommended levels, but don't have a bunch of money to throw at it unnecessarily.

When checking the GroupWise 2012 documentation for specs, it only says it needs, "Adequate server memory as required by the operating system". That's no help.

When checking the OES 11 docs, it says, "Pentium 4 or AMD Athlon processor (1.5 GHz or higher is recommended), 768 MB RAM minimum (1 GB is recommended)" Well that's not enough.

Of course the memory requirements change based on what's installed on the server, how many users, etc., so can anyone point me to a guide which will help me determine how much RAM and CPU I'll need?