I agree with westcpl.
I also believe a professional photographer is the best option both form quality and security prospective, regardless whether they are hired at the resort or someone from the guests who does it for you for free.
We've been lucky last year to meet a very talented photographer from Canada who kindly agreed to take few pics of us
together.
http://www.flickr.com/photos/seek4funtime/8492279865(Usually I'm hiding on the other side of the camera)
At the same time I'd like to point out that a lot of people take pictures at the resort without any subjects consent.
We are both photographers and every time we go to Desire we bring our equipment to take few pics of ourselves in the beautiful environment at Desire.
Every time we do a photoshoot we tell people in our proximity about what we are doing and we assure them they will not be in the frame.
Every time there will be 2-3 people with their cameras
taking pictures of us without even asking if it is OK.
They probably think if it is OK for one photographer taking pictures of a naked lady, it is OK for everyone else to take pictures too.
Does it bother us?
- Not really.
I'm sure most people at Desire would have decency for not publishing the pics anywhere and only use them for their personal enjoyment
Even if the pics end up on the internet, they will be a drop in the ocean of nude imagery and most likely will go unnoticed.
My point?
If you want to take pictures of your wife at Desire - Go and do it! It is fun!
If you want to hire a photographer to do it - it is event better!
If you found a photographer among the the guests - you are just lucky!
Either way you'll be glad you did it as the time goes by.
Best hot wishes,
D&O