Villas at Banyan Bay are very nice -- believe all the units there are two-bedrooms, with attractive furnishings, jacuzzis in master bath, etc. The beach here is one of the best on the island. Plus, it's right next door to St. Matthews, if you decide you want to go to med school! Banana Beach is another nice condotel in this area, at lower prices, though the units are all one-bedroom.
Belize First Magazine http://www.turq.com/belizefirst/