One thing to think about is do you need a hood? if your looking for a 7mm more than likely you need one so there is an added cost for that if the suit does not have an integrated hood. I prefer a suit with a chest zip and the hood attached, the brands that I dive are Xcel and Bare as they fit me well. Regulators are a personal choice as most will do the job for you I have several different brands but the one I dive the most is an Apex XTX50.