I graduated with my BSN in August 2010 and went immediately into the MSN program. I just graduated in May with my MSN and yesterday passed my AANP certification exam. People have differing opinions on working between, but I will share, my experience was that the first year of the MSN was most intimidating. You will have to work harder and review more, because you will not have had time to master all that you learned in your undergraduate program BUT you CAN do it and do it well. The other key piece of information you need to consider is that there is a move to require a DNP for NP practice by 2015. If you start now, you may possibly be able to complete your program and be grandfathered in under the old criteria. Whatever you decide, make sure you follow your passion and it will be a win for you! Good luck!