There are many wonderful places to stay in Ghana. There are many options including lavish hotels or more rustic places to stay. Cheap, decent hotel rooms can run as low as GH₵12.00. A better room can go as low as GH₵20.00
Some hotels will collect you from the airport but expect to share a mini-bus with other arrivals.
For longer stays a few months it is possible to rent a house. Houses for rent are advertised in local newspapers and also in those places frequented by expats - Koala supermarket, Ryan's Irish pub etc.