The following chart reflects the number of levels you are able to obtain based on your Intellect points. [Note: Level one spells/skills are not considered]. This topic has been the center of many discussions, and this table is the outcome. I believe that this information is accurate... but, I will not be held responsible for adverse results. 8^P
With the NDS re-launch, the Intellect Allowance has been lowered. The adjustment sorts out to about 2 less levels over all.