Can you tell I'm researching our next holiday? lol

Fiji is one of the top contenders at the moment but I have lots of questions!

So for those of you who have been, I'd love if you could answer them for me

1. Where did you stay?
2. What is the cost of food like over there? Both to buy at a supermarket and for restaurant meals / eating out.
3. Is there much in the way of shopping/markets over there?
4. Did you do a village tour (looking for the authentic culture experience) and if so where was it?
5. How easy is it to go between the islands and is it expensive to do so? Thinking if we stay on one of the outer islands, is it easy enough to get back to the mainland for a day and not a huge expense to do so?
6. Where would you reccommend staying if we wanted the white sandy beach with crystal clear water experience that's not too expensive?
7. Any info for making the holiday more fun and go smoothly for the kids?

That's all I can think of for now, I'm sure there will be more questions as I research it further.