Yes, the Port SXM site is linked here on TTOL and is the best source. As for passenger loads in general, if the name of the ship is "_____ of the Seas" (doesn't matter what the first word is) it's going to be huge, with Icon of the Seas being the largest, at around 7,000 pax. Princess, NCL, Disney and Carnival will also be large, but not quite so large. Celebrity and Holland America will be a bit smaller. Your biggest loads will be on Tuesday-Wednesday--Thursday. Ships like Star Clipper, Star Flyer, Sea Cloud, Wind Surf, etc., will be dinky in comparison, generally 300 pax or less.