The majority of the guys that left for 'sandier' pastures did so because they lost their jobs when BWIA became CAL at the end of 2006. They likely wouldn't have left otherwise. It being human nature, many of them have nothing good to say about CAL. But the truth is that there is a cautious expansion going on at the moment, lots of training, upgrades and fleet expansion.
But Jay_solo is right, you'll need a Caricom passport as a minimum. Starting position is F/O Dash 8 and there are many caricom nationals with that type rating. As for the NG, all the direct entry guys are on temporary contracts (rumoured to become permanent sometime next year). There are no foreigners yet. There will be a wet leased 737 coming sometime between November and March reportedly being turned into a dry lease which would make 8 NG's. So crews will be needed, there are ads in the papers presently.
PS. I agree with Bredrin & chrislikesblue....The women are hot!