Hi Andy. Great to have you on board. Quite local to me too.
The type of smoker will really depend on what you are planning to do, how much you intend to smoke at a time and of course your budget. I am guessing from your introduction that you are looking to do ribs, brisket, pork etc. If this is only going to be on an odd occasion then you can smoke reasonably successfully in a large Weber kettle BBQ however if you are planning on taking things further then you cannot go far wrong with something like a Weber Smokey Mountain. ProQ do a similar bullet smoker that is less expensive but you lose out on build quality though. Alternatively you could make your own from an oil drum - commonly called a UDS - Ugly Drum Smoker. There are many threads on here with photos that will show you how others have built theirs. There are electric and pellet smokers available however if you want an off-the-shelf charcoal smoker then the ones mentioned above are readily available online.
If you have the space in your yard go for the larger size if you can. You will be surprised how much space a brisket takes when it cooks. Also I would avoid the cheap offset B&Q style smokers that are becoming more popular as it can be quite difficult to get a managed even temperature in the cooking chamber.
While you are looking to get the smoker put a little money aside for a digital thermometer - The Mavericks are great. These take all of the guesswork out of your cooking.