o jackie - Here's the answers to your questions....and I'm so happy you enjoyed the pictures!
1) Well, I have to tell you that the underwater shots WERE with a disposable camera....lol We used the Fugi....$8 each (27 exposures). The rest of the pictures were taken with a Sony Cybershot 70 (digital). I really love this camera...but I guess most people do fall in love with their digitals. We were shooting at a low resolution (640x480) to make handling easier and faster. If we were planning to make large prints, the camera has the capability of much higher resolution...hense...clearer pictures.
2) We used Searious for our Hol Chan/Shark Ray Alley tour and Jeffery was our guide. He had to spend most of his time with a girl who was pretty much a non-swimmer/snorkeler so he didn't really have the opportunity to guide the rest of us that much.
But we had a FANTASTIC trip!
3) We have a lot more pictures!..lol Some are sort of duplicates and some just aren't that great. There are some other pretty good ones, but I figured everyone would get pretty bored looking at our vacation travelogue...hehehe