There are a number of options available to you.
Imported suits. Some very good quality as well as the poor quality, best guide is price, you get what you pay for. Have a look at the specialist suppliers.
Local. Rob Allen make a very nice suit and a custom made suit is worth the extra money in my opinion. The old Cressi in Jo'Burg, now called 360 also make a quality product but their neoprene is a bit stiff.
I have an Omer 3mm which over time has become a 11/2mm as it has compressed, and not over a long time either. Very soft material, open cell. Also an imported Cressi 5mm open cell, excellent quality.
Open cell means that the neoprene is uncovered by nylon fabric, i.e. the rubber sits against your skin. Comfortable, warmer, but it does mean you need a slip juice to get it on, I use aqueous cream mixed with water, pour into suit and slide in. Can be a hassel. Also you need to be careful as it tears easily. Ask at your local dive shop for more info. A starting point for you would be Rabitech.