I'm such a quitter!
I personally quit smoking after 16 years @ about a pack a day shortly after my e-cig showed up in the mailbox (6 months ago).
There are a couple important things to consider when thinking about electronic cigarettes. First, you can never fully replace the experience of smoking. You simply can't replicate the flavor of your favorite brand and you also absorb much less nicotine with e-cigs than when smoking. They are also a bit more of a hassle to keep up with. Instead of simply picking up a pack at the gas station and lighting up, you have to charge and recharge batteries, maintain a stock of "juice", etc...
All that being said, ordering an e-cig starter kit and trying out a couple different flavors/types of "juice" was , without a doubt, the best investment I've mad in my entire life and the first method that actually got me to quit smoking.
Here are a couple of links to help you out:
E-Cigarette Forum - More info than you could ever want or need about e-cigarettes.
Eastmall - Ordered my starter kit and some juice from here. Quick shipping, great prices.
Cignot - U.S. based company (removes any possible hassle with customs). Quick shipping, decent prices, but seems to be out of stock on a couple things right now.
My advice: Order a PCC starter kit
here . Grab an extra battery and atomizer from them or which ever site you buy some e-liquid from. Search the e-cig forum for the "Lipton tea bag mod" (couple quick minutes = better flavor and more cartridge capacity).
Be willing to tinker around with your "juice". The two common bases for e-liquid are PG and VG. Pg gives you more of throat hit, like smoking, and VG produces more vapor with no throat hit. There truly is a ton of knowledge in the e-cig forums if you willing to sift through it all. If you have any specific questions, just give me a holler.