I am setting up a domain with approximately 45 users, which rules out Windows Server 2012 Essentials as the Active Directory Domain Controller. I want to retain the features of Essentials, specifically client backups and Remote Web Access. I have read some whitepapers indicating that I can setup Windows Server 2012 as a Hyper-V host and run Windows Server 2012 and Windows Server 2012 Essentials as virtual instances. This concept is blogged in the following link: Using Windows Server 2012 Essentials with more than 25 users
I intend to purchase a Dell Windows Server 2012 with 45 Standard user CAL's. Is this all I need to buy? Will the Dell OEM version work? Do I need to buy RDS CAL's instead of regular CAL's to use Remote Web Access? Am I missing anything?