Hi Aaron's Kitten, congrats on your upcoming wedding and cruise selection. You will love cruising and be hooked after this one. If you have a travel agent that you like and one that knows about cruising, I'd use them and book now as the timing is short. Upon booking, I usually keep an eye on the RCI site in case my agent misses a price drop and I make sure the agent gets me in on it. I would suggest a balcony if you can swing the price break as it will give you that extra wow factor of being able to enjoy the outside right from you cabin with breakfast there if you wish and an evening night cap watching the moon in the carribean.
Best of luck and enjoy !