Hi Ilcornalito

The only gated communities in Negril at this time would be Point Village & Little Bay Country Club. There are a handful of properties around town that offer fenced in locations but don't offer manned security.
Rental rates will be dependant on the length of time you will be staying and your location. One or two bedroom apts can run anywhere from approx. $400us monthly to up over $1000us monthly...some places will include utilities like your water and current but most do not. Your employer will know the area & should be able to get you a better rate.

On a side note & only because I've seen many people have issues working here...if you're not Jamaican, make sure your company has all your paperwork in order before you arrive.

Congratulations on your move to Negril!