I was able to take the boards (ANCC) after finishing my final courses, but before I had my final degree conferred. I didn't want to wait too long, so I studied for about a month after my final exam. I went ahead and submitted my application for the ANCC (signed by my program director) before I graduated, because it takes them at least 3 weeks to just review the application. Even though my graduation date was in August, it took them quite a few weeks to actually process and submit the final degree for our school. I was told that is the usual process for graduate schools, it will say the graduation date, but be prepared to wait a few weeks past that to get the documentation.
After my final degree and ANCC was final, it took approximately 2 weeks to get my nursing license, then it took 1.5 weeks to get my state CDS, and just 2 days to get my DEA license.
To finish everything it took approximately 2 months from the date my classes ended.
My fees were about 1600-I paid 200 for study materials (get the pink ANA book, it's awesome!), 400 for the exam, DEA is 750, CDS was 200, and then the board of nursing fees.