Hey Thanks for the input; And some solid info as well, I'll do some comparisons and put some more thought into it.
Howard: Thanks for your research, 282.94 for 36 lbs. may sound steep to some, but I lost 2 1/2 days of diving because of a baggage problem. My calculations for ths trip estimate a cost of around 300.00/day per person, thus even a half day delay would outweigh shipping costs, asuming 36 lbs/person. (pretty good estimate for full weight by the way)..
What I'll persue is a middle ground solution: Send fairly light,tough, bulky items by frieght - BCs, Fins, wet suits, spares, and the "top side" stuff, clothing ,ect. This is what I check these days anyway-just eleminate checking.
Carry-on is as alwaws going to be Regulaor,#1 mask, and the usuall suspects, - sivies and a toothbrush