proskuneho, It varies by state on the requirements to sit for the CPA exam. I know the Texas requirements:
Im an accounting major at OU and the average starting salary was $46,000 for graduates with a bachelors in accounting and $53,000 for those with a masters for the 2007-08 school year. Those are the numbers published by our career services. Im not sure what the pay difference would be if you already had your CPA, but those numbers are a starting point.
Bryris good luck preparing for the exam.