I thought I would mine the fount of knowledge I hope there is here on this topic.

I'd like to make a small run of PCBs for use in my fireworks business, the function would be the same as these...

http://www.cobrafiringsystems.com/index.php?route=product/product&product_id=138

It's only a connection interface, there are no electronic components at all on there.

The design of these boards is terrible, about 3 times too big and not easily mounted in a standard case. So I thought I would make a small run for my own purpose probably using some kind of IDC connection rather than speaker terminals.

Trouble is, I have no idea where to start. I'm mac based here, I assume there is some software I need to use and then find a place to make them at a reasonable cost (I'll do the soldering of course). I'd like the boards to be some what moisture resistant as they will be used in some pretty harsh conditions.

Cheers

Cris