Hi: some accommodations in Placencia Village that we have worked with and are good values:
Sea Spray: $45 USD per night, double occupancy, beachfront, private bath (hot and cold water), small fridge and coffeemaker, fans
Easy Living Apartments: $75 USD per night (double occupancy), $93 USD per night (triple occupancy), two-bedroom seaside apartments with 2 bedrooms (one queen and one two twins), full kitchen, bath, air conditioning, private verandahs
Manatee Inn: $35-$40 USD per night, double occupany, comfortable double rooms near the northern end of the Sidewalk
As everyone has indicated, car rental IS expensive, and if you're in the Village, you don't really need a car unless you plan to do a lot of exploration north on the Peninsula or in other parts of Belize.
Let us know if you need any help with reservations (air or hotel).
Mary
www.kevinmodera.com