Rule number one, please do not buy any of these brands, especially if you are trying to quit smoking. There are many reasons to avoid these "cig a likes" but the top of the list has to be is they are junk and will make it much harder for you to quit smoking cigarettes, believe me I've been there. If you do a quick Google search for "the best E-cigarette" or something similar most of the results are paid ads that look like reviews or blog post. While we're at it I am not getting any money from any tobacco or E-cigarette to post this, I may see a few fraction of a penny from the ads here through Google but that's it. I really wanted to get this out because every time I see one of the well produced ads for Vuse or Blu I worry. These ads give the impression their brand is the best the electronic cigarette world has to offer, so you give it a try and are so disappointed you give up on the idea and go buy your next pack of cigarettes. The funny thing is many of us think this is on purpose, many of these e-cig look a like companies are owned by tobacco companies and they really don't want to loose out on tobacco sales. Oh course this could be just a funny coincidence and tobacco companies just don't know what they are doing when it comes making a good electronic cigarette.
Now on to actually buying your first setup, you have thousands of options and it's very easy to get overwhelmed. Luckily for you there are many people that want to help, not for money or any other reason than they've been there and want to help. You can ask me here, it would make my day to help just one more person save their life and money by getting the right setup to help them quit using tobacco. Or you can always check out one of the great resource the vaping community have built, here is a list to get you started.
reddit.com/r/electronic_cigarette/ is a huge online community of e cig users, both new and long time vapers. Reddit has many other subs for different aspects of vaping world but /r/electronic_cigarette/ is the best place to start.
Try your local e-cigarette brick and mortar store, just be warned not every person that works at a b&m knows what they are taking about and the price are going to be higher than what you can find online. Both can be true for most any business but a lot can be said for face to face customer service. I only recommend doing your homework first so they don't try and send you out the door with a $400 setup when all you needed was a $30 tank and battery to see if it's for you.
http://www.e-cigarette-forum.com/forum/ I started my vaping journey here but have found I like the reddit sub's better but this place may be right for you, can't hurt to try.
YouTube: there are too many channels to even begin to list but as always it's a great place for reviews, how-to's, and general info.
Bottom line: if you have any questions please ask someone, I'd be happy to help or there are plenty of others what want to help too. And please try and stay away from the gas station look a like cigarettes, they are bottom of the line products and will cost you way more in the long run.