Wow thank you guys for all your help! Should I apply for any of these cards the same day so my credit does not get pulled more than once?

The spending I don't think will be a problem as we will start paying for all the wedding stuff very shortly.

nadir576 - I see you got flights for 20K each way in May, I priced the same flight in September and it was 30K. Any chance the September flights decrease to 20K or is that just a more expensive time of the year to fly?