ok, so I've got my Open Water, Advanced Open Water, Wreck Diver, Deep Diver, Rescue Diver, Boat Diver, Search & Recovery Diver, and a few others...I do search and recovery diving in my area, so whenever there's a body in the river, or if a car goes in the river, or a boat sinks, etc., we go out and get it.  Bodies get really disgusting after they've been in the water for 48 hours...shit's gross.
Been diving for 20 years now.  It's the fucking shit.  It's right up there with skiing imo...
OP - what exactly are you looking for equipment wise?  We've got so much shit lying around, it's almost ridiculous.