Here's a link to a magazine write-up from Sport Diver.
http://www.sportdiver.com/article.jsp?ID=33587
One thing we did get to do, and maybe it was because there were only 2 of us plus the dive master in the water, was actually swim among the sharks, circling with them around the bait bucket, before settling back down on the sand for the opening of the bucket.
The DM first set the bucket down in the sand, which has a few holes punched in the lid, while we kneeled on the sandy patch with a coral head to our backs. The sharks and jacks came in and agglomerated around the bucket area fairly quickly. Then, the DM indicated for us to swim around in a circle, and started doing so himself. We did literally get 'face to face' with these sharks - I mean a hands' breadth away with out touching them, often looking them right in the eye from such a close distance, and it was a real experience to swim like this in such close proximity - it was similar to a dive we did in French Polynesia with silvertip sharks there, but no bait bucket. I kept my fingers tucked under my arms, my wife kept her hands on her still camera. We did this for quite a while, and I'd have to say this was probably my favorite part of the dive!
Then, the DM signals us to kneel back down on the sand, our backs to the coral head. The DM takes the lid off the bucket, and a short flurry of activity ensues, with one of the larger & more exuberant sharks getting a case of 'bucket head' for a few moments, emerging with a fish tail poking out its snout, which quickly diappeared. Then, within 2 or 3 more minutes, the sharks went back to their routine sharky lives, and we did a slow ascent up the mooring line, safety stop, and back into the boat. The mist had dissipated while we were underwater, so the crew was able to take us straight back to the dock in short order, unlike the ride out.
My computer logged 34 minutes bottom time, 72 FSW max depth, 57 FSW average depth. The sharks varied from maybe just under 3' long to just over 6' long - when you're swimming this closely with them, with references like your buddy & DM to gauge them by, you can get a pretty accurate idea of the sizes.
We're still waiting for our still pictures to come back from Sea Processing - I'm anxious to see how they turned out.
We had the shark dives 'comped' to us by the owners of Reef House Resort where we were staying, because their boat had problems that day, so we went to do the shark dive to give them time to work on the boat. We were told the regular price was US$75 per diver for this 1 tank dive, and US$45 per copy of the video footage they shoot (if they shoot it). There was a setup for partial pressure blending of Nitrox, but we dove air for this dive, so I have no idea what extra cost there might be for Nitrox here. We did this dive on April 4, 2005 so the pricing is still probably the same.
Things in their office were just a bit 'weird' for our whole experience. While we were putting on our wet suits, I asked their staff if they needed to see our C-cards or fill out any paperwork before we do the dive, and we were told "No, we are sure you are very good divers." So, nobody checked our C-cards, and we didn't fill out any waivers. It might have been different if we'd requested Nitrox I guess, as I imagine they would want to see a Nitrox cert for anyone they supply Nitrox to, but who knows?