If you only pick your vape up every now and then, there are some very good pods around, if your vape is never out of your hand you`d probably be better off with a mod either internal or external battery and adjustable power, together with a tank (atty) with either a stock coil or rebuildable coil deck, the latter maybe when you have a bit more experience. by far the most important element to a good vape is the juice, I`d advise you try a few, you might be surprised which flavour you find most satisfying and therefore most likely to help you stay away from ciggies.
Once you`ve made your mind up which way you want to go there are a shedfull of members on the forum who will help and some very good juice makers too, but your original question is too open ended.