Hi Sue,
I think that Mini-b thing is halarious, and I feel sorry for anyone ignorant enough to buy one.
Personally I would go on eBay and buy either a standard scuba BC or a harness without the BC like this
http://www.scuba.com/shop/display.asp_id_004037 and then strap a small scuba cylinder on it like a 30 cubic foot or 40 cubic foot cylinder. I did that once in the pool during the Scientific Diver class I assist teaching and I got about 1 1/2 hours out of my 30 cu cylinder. The pool is 14' at the deepest point.
Anyway, you can get a regulator off eBay for a lot less than retail. Just get it serviced and your off digging in the mud.
Like everyone else has stated, a basic scuba class would be the first thing you do so that you can continue to talk to use on ScubaBoard after your first shallow water scuba dive.
Snuba and Hooka are ok if you don't mind having to drag a floating object around behind you. It will blow with the wind and cause more drag than a scuba setup. Been there, done that, got the tee shirt.
The reason snuba is popular over hooka is that with snuba you just have a scuba cylinder that you take to a shop and get filled. With hooka, you have to maintain the motor and have it serviced. Gas units have to be fueled and electric unit, well, they need electricity so you have to be near an outlet.
Regardless, at 10' to 15' you don't need a BC and you only wear weight if you have a wet suit on. The weight compensates for the buoyancy of the neoprene of the wet suit so you can dive. I don't get the impression you don't wear a wet suit so you probably don't need any weights.
If you have a load for the west coast, drop me a line and we can chat over coffee.
