How exciting! We'll be there in November, too. We have been taking my son since he was 2 on a regular basis (he's turning 6 soon) and started taking my twins last year (they were 13 mos, 11 mos adjusted the first time and are 2 1/2 now). Anyway, it's a lot easier than it seems as long as you prepare ahead of time. Bring snacks. It helps to have them readily available when standing in line and stuff to help pass the time. If you plan on naps in the stroller, I've found that the area under the swings at DCA is a good spot to sit and relax, as is the area near IASM at DL. Have you picked a hotel? If you're staying off-site, we love HOJO if we're on a budget or Courtyard if not. Both have fun water play areas. November it hit or miss with weather, but it's nice to have the option. Both have large rooms, too, with plenty of space. Finally, best first rides...I think DCA is the best park to start with as there are more open air rides (like the ones in Bug's Land). At DL, the best first rides are Casey Jr., Dumbo, or IASM. Most of all, just realize that with children, especially twins, it's going to take time. You can't over plan because you just don't know how they'll react. Follow their lead and all will be well.