Are unreal.  minimum is 8 gigs and they say they really want 10.  I can say that if you want to deploy the system and have room for usage without having to upgrade the ram very quickly start with 16 gigs of ram.  Hard disk space is very large.  I can tell you right now in term of storage.  SBS 2k8 barely runs well on 7200 RPM SATA in RAID1.  Do not deploy this software on anything less than 10K RPM SATA/SAS in real hardware RAID 1. CPU is Minimum 2.0 ghz quad.  I’m going to say you really want 3.0 ghz quad to leave room for other things that will get installed on that box to support business operations.


SBS 2011 System Requirements.