Plenty of good recommendations provided for you. I will add that if you decide to go with a passthrough to use in your vehicle the lighter adapter will need to provide 2 watts of power to power your e-cig. Someone might verify this.
I use a cartomizer tank and they do not leak. Easy to use with just about anything out there. You can make your own, syringe tank easily. The other thing I would add is start with several 10 mil juice tobacco juices just in case some don't work for you. I was a pack a day + smoker as well, marlboro red, and found 24mg works well for me. I started with RY4 and flue cured tobacco juice and that does the trick for me.
Good luck.
I use a cartomizer tank and they do not leak. Easy to use with just about anything out there. You can make your own, syringe tank easily. The other thing I would add is start with several 10 mil juice tobacco juices just in case some don't work for you. I was a pack a day + smoker as well, marlboro red, and found 24mg works well for me. I started with RY4 and flue cured tobacco juice and that does the trick for me.
Good luck.