I just looked up the Beach to Battleship registration. The date is October 20th. After signing up for the Spartan Beast, which is on October 13th, I don't think this would be a very good idea. I thought the B2B Half Iron was going to be in November. I suppose this means I'll have to do the FULL Iron in 2013. :)
I believe the Spartan Beast will be much more entertaining and physically challenging. For those who haven't heard of it, it's a 12 mile obstacle race. As you know, I did the Warrior Dash last year and thoroughly enjoyed myself. That was only 3 miles, and the obstacles in the Spartan Race are much more challenging.
Got a busy, physical year coming up... Going skiing in February (never been before), Spartan Sprint in March, Rock 'n Roll Half Marathon in April, and the Spartan Beast in October. I'll see what else I can get into the other 7 months of this coming year. :)
:-D