i would like to get into a lot of specialties. i have been looking at getting certified for cave diving in two years when i am down in Mexico for a wedding. i have noticed that you need to use side mounts for this and i have a pretty good idea i cant use my regular bcd for this. i have seen some you tube videos of people using the side mount set up and it doesn't appear that they have a lot of equipment ( one looks like he hardly has a bcd just two tanks and a harness. ) could someone please help with what one would need to have a side mount set up without breaking the bank ( minus the Apeks regulator set up i know i will need. ) it doesn't appear that there is a lot of info online about it any help would be appreciated and like i said it will be two years so please disregard the fact i am considerably new to diving.