Here is My understanding of the Per Core and Cals
per core is limited so if your server has 2 Quads that is going to be 8 licenses
and per cals it is unlimited so really
best thing is to buy the license with 5 cals and then down grade to 2008 or 2008 R2
Thats the I understand iI got. **and buy far not the smartest rock in the bag**