Andy,
Smoking is not that difficult, but you are right there is a big difference between BBQ smoking and curing (cold smoking).
To begin with if you want bbq smoking buy yourself a small charcoal, gas, or electric smoker. There are many different styles available, dome shaped, square, drum with side fire box. They all work. The important thing is to keep the temperature as close to 225 degrees (that's Fahrenheit not Celsius)and cook slow. I do ribs (pork) for 3-4 hours, and pork shoulders for 12 hours, when done I can pull the bones out with no effort and they come out clean.
Any of the smokers you buy will have lots of recipes and instructions.
Cold smoking or curing is an altogether different animal and requires knowledge which has been pretty much lost to most modern civilized people.
It is not a difficult process if you just do a little research or can find someone locally that is willing to teach you. I have done a considerable amount of curing over the years, and it's not easy to teach someone this process over the internet.
My suggestion would be to purchase the book "Cold-Smoking & Salt-Curing Meat, Fish, & Game" By A. D. Livingston, this book instructs you on the proper method of curing and building a variety of smokers and there use. It is an excellent reference book and inexpensive ( Under $20 ).