You've got the bug now!
I take a two week trip every July, and I start planning for the next one in August, so I know exactly how you feel!
This year I'm taking 4 weeks to go to Prudhoe Bay, Alaska on the Arctic Ocean. This one has been in the planning stages for 7 years. It's time.
I hope you have a great time on your trip! If you don't have purpose made rain gear, you might want to consider it. It's amazing how much of a difference not getting wet in the rain makes to your overall enjoyment of a ride. LOL