Diving in Jupiter is great! If you are in the area, you should give it a try. I dive with Jupiter Dive Center the most in part because I like the people and in part because I prepay for my dives for a huge (per trip) discount. I probably did 50 dives with JDC in 2012 Their three tank dive on Friday is really nice. I've never heard a complaint about Amazz's ride on the ScubaWorks boat either and some day will give it a try: I've seen their boat from the water it is cool looking. In Jupiter you are almost guaranteed to see big marine creatures: depending on the time of year, that will be sharks, goliath grouper, loggerhead, green and hawksbill turtles, big green morays, huge southern rays, etc.
Here's a sample of what you might see in the area.
Drift Diving with Sharks in Jupiter while Gary Hoey plays WIPEOUT - YouTube
I think West Palm Beach is also very nice: most of the bull sharks I've seen are in WPB and you'll probably see some big stuff but not nearly as likely as in Jupiter unless you're on a wreck like the Zion train mentioned above. In WPB, I've dove with Narcosis, Walkers, Scuba Club and Jim Abernathy: all are good operators. A lot of the local boats only have morning trips during the week and Scuba Club does have one of the few Friday afternoon two tank dives. I've dove BHB in the AM on a Friday (when tides are right) and gone out with SC in the afternoon.
I only occasionally dive in Boynton, but have taken several trips with Underwater Explorers and have had good experiences.
Unlike some other SB members, I also like Pompano and Lauderdale by the Sea: if the wave action is minimal, I think the first reef line (Pompano drop off) is one of the nicest shallow reefs one will find in Florida. Its not fun with robust waves because of the surge though. You can either hook up with Gold Coast Scuba's Meetup Group for a beach or boat dive or look to a boat operator directly. I've been out with Pompano Dive Center, Scubatyme and South Florida Dive Headquarters.
For diving the Blue Heron Bridge, you can rent gear (tanks, flag, etc) at Force-E on Blue Heron Blvd: they also have little maps of the dive site.
Since I live here, I don't know much about the hotels but some of the above mentioned dive boats/shops have info on their websites: I know South Florida Dive Journal also has information on its website about hotels too.