I am doing both! I signed up for Nation's first and then realized that doing a shorter tri would be a good idea, so I'm doing the sprint in June. It'll be my first tri too! I've been doing the new triathlete program with the DC Tri group and that's been a great help. They have a training schedule and they put on clinics and practice events and give you advice about what works and what doesn't. I highly recommend them as a group in general, even outside of NTP. They're always putting on events and workshops. I'm super excited but still feel totally unprepared to do all three sports at once. One more month to go!