I just recently stuck with e-cigs, i tried about a year ago but at the time was not committed to switched so i didnt. However this time around its been going well and yeah there is an epic amount of choices and information.
For a reasonably priced start setup i would suggest the G6
G6 Basic Starter Kit - G6 E-Cig , its good for its price and works great. Although i suggest to not to get the automatic version of their
batteries as you have to drag somewhat hard for the battery to kick in.
Next once you have the equipment is the
juice. Finding the right flavor can be a daunting task as there really isnt an easy way to try several falvors and then get what you want. I personally enjoy
https://www.backwoodsbrew.net however currently they are hard to get orders in as they are in the process of moving but they seem to have the best taste from what i have tried. Its also prudent to buy the juice not pre filled cartomizers . Also for strength since you are a PAD i would suggest get 18mg strength initially and see how your smoking habbits change if any. I noticed i smoke more often but in shorter sessions so after my first vial of 18mg strength i dropped to 12 mg.
Hope this helps