You fly into Puerto Plata. Sosua is a 10-15 minute cab ride from the POP airport. They have an all-inclusive resort in Puerto Plata call the Sosua Bay Resort.
http://www.sosuabayresort.com/main-index.htm
The resort was mostly for families but the recession has caused them to open up business for us mongers. They have some rules though. When you bring a chick back, they can only go to your room. She cannot go to the bar or have breakfast or dinner on location with you. She cannot go to the pool w/ you either. Also, the families will be looking at you funny because they know what you are doing. They have two buildings for men that will have guests and they are a little bit away from the rest of the guests. But it is all inclusive.
I am staying at the Terra Linda. The hotel is guest friendly and they do not have all of the restrictions. It is not an all-inclusive resort but it is really nice. The restaurant is really good and it is in the middle of all of the action.
http://www.terralindaresort.com/
You can also try the New Garden Inn. This is the most popular hotel in Sosua for mongering. They are guest friendly and there will be bitches chillin by the pool and at the bar as early as 9 a.m. Also, they have bikini contest here on almost a monthly basis. The rooms and hotel is not as nice but it makes up for the lack of accommodations with all of the action that is there. Often, people staying at other hotels chill at the New Garden. It is also in the middle of all of the action.
http://www.newgardenhotel.net/
I have listed all of these hotels in order of price. The Sosua Bay Resort is about 45-125 per night depending on your room and whether or not you want all inclusive. The Terra Linda is 65-110 per night depending on your room. The New garden is about 40-50 per night.
Let me know if u have any other questions.