Dynamics CRM On-premise in 3 to 2 Editions . . .

The community application store is the best place to buy new Microsoft Dynamics CRM 2011 User or CAL (Client Access License) as well new or upgraded server editions including the External Connector. Always support your Microsoft Partner and the quality Partners of this community. Microsoft-CRM information, support, and service at the most affordable global rates are the primary goal of this community and sourcing the actual CRM software licenses is no exception. Community effort drives down Dynamics CRM pricing.

Dynamics CRM for your servers is available in editions to suit your needs . .

Workgroup Edition - Entry Level Bundle - Perfect for small business needs of 5 or less users. This edition includes the CRM Server and 5 Named Users as a Bundle. Upgrading above the 5 in the bundle later requires upgrading to the Professional Edition license and paying the initial price difference – an expensive upgrade.
Professional Edition - Perfect for most business needs. Add users without limit. Supports a single organizational unit. User or Device CALs (Client Access License. Select Server and Users Separately
Enterprise Edition - Intended for enterprise needs. Add users without limit. Multiple organizational units. User or Device CALs. Limited Read-only low cost users available. Web portal license called External connector and limited Read-only External Connector are available. Select Server and Users Separately
External Connector- Allows for unlimited non-employee external user access from your external website or portal. This license does not include any software or functionality but rather governs rights to access the CRM data and functionality.

Basics of this Microsoft-CRM own-the-software choice are:

All editions of CRM are identical looking and in feature set and functionality accept "multi-tenancy" is only in the Enterprise edition only. Multi-tenancy is for hosting multiple different "Organizations" with larger enterprises with multiple distinct organizations.
The CRM takes advantage of advanced SQL Server 2005 functionality and therefore SQL server 2005 is a required component of the infrastructure Stack in addition to Windows server.
Any CRM can be run on any server configuration that supports the processing requirements of the implementation including Windows Small Business Server and the entire Windows server family.
CRM "User" licenses are now available in "User" - where a single named individual may sign on from any PC anywhere - Perfect for office, home, travel. Or "Device" - where a single PC will allow any number of different users to sign on - Perfect multiple shifts of staff 24 hours a day.
Licensing is processed over e-mail. The software media (CD) is delivered by express courier in 2-3 days.

Microsoft Software License Offerings Explained:

This is the most common method businesses use to acquire Microsoft Dynamics CRM because it is the least expensive in the long-term sine it is purchase not a perpetual monthly fee just for the right to use it. Significant Microsoft support called Software Assurance (SA) is included with Dynamics CRM. SA includes 6 incidents of phone plus unlimited web resource access and free version upgrade.

Open Business- An older license program that provides only 2 years of SA – BUT does not allow Edition upgrade – i.e. Workgroup to Professional.
Open Value Full-Pay" or "3-Pay"-The newer license program that provides only 3 years of SA. Full Pay means pay the full license amount with the order. 3-Pay – the most popular license choice by-far allows you to pay in 3 equal payments - pay only the first year to start and pay the 2nd and 3rd year as those years start.