Thank you for all your help!
We're currently waiting to hear back about how much we might be able to book on points! If we can book most of the flight portion on points it will help us a lot - especially after paying for a wedding -- but they're a little slow to get back to us. Akkk!! Wish they'd hurry up!! I want to start booking things! ;)

I also recommend at least a night and day in Lima. Sightseeng, cultural sites and for shure, gastronomic experience is what I highly recommended. My personal suggestion, visit "Restaurante Manifiesto"... take a look here: http://www.manifiesto.pe/en/home.

I am probably one of the few that was underwhelmed by BA. While there were a number of things that were nice, my lasting impression was a city that was dirty and suffered from deferred maintenance.
Iguazzu was incredible however and very romantic for a honeymoon. There's more to it than just a waterfall (ex. Niagara Falls)its a whole park full of waterfalls. Truly you have to experience it.

Thank you for everyone's input!
Our flights are finally booked!!! :)
Looking into using points to fly took forever!!
We didn't end up using them for this trip.
We're so excited for our honeymoon....
May have a few questions about hotels to stay in..
I will start a new post for that though
THANK YOU :)

congrats on your wedding, hope you enjoy your honeymoon. about altitude sickness: eat lightly, take lots of sips of water,no caffeine, stay in olly for acclimatisation as they recommended, but just in case, also take a mild diuretic with you and take a tablet when you reach a higher altitude if your feeling dizzy, nauseous, shortness of breath,headache or wake up in the morning with a puffy face. advise i took from a friend who crowned the everest when i went trekking in bhutan. better safe than sorry :)