I am so excited for you! I love BOMs. I am working on one now (well I am VERY behind) and I have another from a few years ago that I work on from time to time. I did one last year at my LQS, Thangles Series 7 and I finished that one in time for my DH's birthday. BOMs are so much fun!
My only advice: Try your best not to get behind. It is definitely much more fun when you stay on top of the blocks. Especially ones that might be a bit more intricate.
Have fun and I too hope that you'll post pics of your progress and completed blocks!