Thanks all, will update the Las Vegas pics in a few days or later in the week.

Biggest tip I can offer for saving was Expedia. We really did this on a budget and booked our flights over to America on Frequent Flyer points and shopped around for the best hotel deals. I also used as many coupons etc on hire cars as possible.

I signed up to Expedia when I created my hotmail account about 8 or so years ago and put all their emails to junk as they were coming through regularly but as it happens, they have saved us so much money with rates etc and are well worth checking out. The other benefit is because they are booked through your own country, you don't get charged a conversion fee on bookings (e.g. If i use my Australian Credit Card to book a hotel in America, I get charged a $30 conversion fee. If I use Expedia for that same hotel, they do the booking and I just give them my details).

Will put up rough costs when we get back but honestly wasnt as much as it might look, especially given the rate of the $$ at the moment.