Heller,
Take it from someone who smoked a pack a day for almost 20 years and then was able to quit via electronic cigarette:
There is NO ecig that will adequately simulate analog cigarettes... PERIOD!
Put it simply ecig does NOT equal to regular cigs - NEVER.
If you go into purchasing ecigs with expectations that there is such a thing, you'll just be throwing your money away and fail.
ecigs are basically alternative nicotine delivery system (like a nicotine patch) but one that more closely simulates the habitual inhaling action of regular cigarettes but without the tar.
As for advice, I can only speak of my personal experience - it took ALOT of research time, patience, and some investment (money, although definitely not as much as buying regular cigs at pack a day).
Probably the only place necessary for all ecig related research:
http://www.e-cigarette-forum.com/forum/
I started myself with an 801-D with cartomizer kit ($40) but was lucky enough to get sound advice from other ecig users and from the forum and quickly graduated to something that works for me - a custom made variable voltage 501 kit ($50) + boge cartomizers ($1-$2 per count) + carto tank ($10) + primarily menthol/mint e-liquid at 18mg nicotine level ($15 per 50ml premade). Important thing here is that what works can be vastly DIFFERENT for everyone.
Besides the initial investment equipment listed above - the consumable parts are cartomizers and e-liquids which typically costs me around $150 - $200 total per year of fairly heavy vaping which equals my cost of buying 4 cartons of regular cigarettes which typically lasted 1 1/2 - 2 months = SAVINGS.
One can also learn to create their own e-liquids which will bring the costs down significantly which I haven't dabbled into yet.
One word of caution - beware of gimmicks where they sell you a kit and cartridges (which are typically cartomizers pre-filled with e-liquids of "tobacco" flavor). They typically make money off selling you cartridge refills which usually costs anywhere from 3-10 times more than buying and filling your own cartomizers.
But as anything that is a tool designed to help remove addictions - the most important thing is your mindset and dedication to quit. Without this, there's nothing that will help.
Do alot of research and do more research and hopefully you'll succeed in quitting. I do strongly suggest visiting a B&M ecig shop (shop owners are almost all experienced past smokers and helpful - they might even let you try some out) to gain knowledge and experience what's available.
It's been 3 years and 2 months since I smoked my last cigarette and I hope you find your way to quitting too via ecig or other methods which might be right for you.