Belize

BELIZE CITY
Transportation: The taxi from the airport to Belize city costs a whopping US$25. You can negotiate this down a little, but be prepared.
The Caye Caulker Water Taxi Association runs a brisk and professional service to Cayes Caulker and Ambergris for ~$8 from the Marine Terminal in Belize City.

If you can avoid it, don't spend more time in Belize City than you absolutely have to.

CAYE CAULKER
Accommodation: Manuel runs the delightful Lena's south of the ferry pier, and has cute self-contained (no A/C) rooms for ~$25/night, right on the beach. For more glamorous digs, the Seaside Villas and the Seaside Cabana's both looked pretty nice.
Food & Nightlife: I had truly exceptional meals at Don Corleone's, and the Jolly Rodger cooked up a great lobster. Femi's is overrated, and I heard Agave has great (but expensive) food. It's hard to go wrong if you go to any place that looks like they cook their seafood fresh. I&I has a good rooftop bar (with nice breeze), and Oceanside is the only place for partying after ~11.30pm.