First , congrats on your decision to explore using e-cigarettes (or "PV"--personal vaporizers, as some of us refer to them).
I'm going to recommend the 510 model. There are several pluses to this model. First, its size is such that it feels vaguely cigarette-like in its shape. Many folks feel more comfortable, at least at first, sucking on something that kind of resembles a cigarette or a pen. Second, it provides a good, strong hit so you feel like you're inhaling something of substance into your lungs. Third, the price point is under $60 to get a starter kit (charger, two batteries, two atomizers). Fourth, the manual battery allows you to control the vaping experience a bit more, and you eliminate the need for primer puffs and such that you have with an automatic battery. Fifth, the manual batteries are sealed, which means that you eliminate problems with batteries that go wonky because you managed to get liquid into the battery.
Is the 510 the perfect e-cig? Nope. The batteries have a short life. Depending on how much you vape and how long you hold down your manual button on the battery, you'll get anywhere from 1 hour to 3.5 hours on a battery. Batteries and atomizers don't last forever, and when you do replace them, they ain't dirt cheap. For this reason, some folks buy the Dura-C from JantyUSA because it comes with a very long warranty. You will pay more upfront, but you can control your costs because if your atomizer dies, you can send it back for a replacement.
If you want the excellent warranty,
Janty USA is the place to go. If you want to spend less upfront and forego the longer warranty, I recommend
Widows Bead Work - Home. For $50, you get the 510 starter set with no s/h costs. She's out right now, but should be restocked the 20th or thereabouts. She also ships quickly, and I routinely get my orders from the Widow within a matter of a few days. I also think the instructions she provides with the 510 are excellent.
Whatever model you get, though, please do order some liquid. You will find that your vaping experience won't be so great without the ability to top off and refill cartridges. For most folks, once the cartridge is half done, vapor production drops to a point where it simply isn't terribly satisfying.
My personal view (and reasonable minds can differ on this) is it makes sense for newcomers to start off with an e-cig that is a bit less expensive and perhaps a bit more cigarette like at first. This gives them a chance to try out vaping without spending an arm and a leg, and psychologically, some may find it easier to start off with something that kind of sort of resembles a cigarette.
The more expensive manual battery devices generally provide the most consistent, satisfying, and long-lasting vape. The models mentioned by wv2win fall into that category. However, the price point is such that it's often hard for newcomers to justify the cost when they haven't even tried an e-cig.
For others, they wish they had started off with the more expensive manual battery models from the get-go.
Good luck!
