I agree with Taryn definitely read the wonderful world of vaping thread that she suggested..it's long but it really is entertaining and good at helping you distinguish between models.
You didn't state how many of those newports you smoked but if it was around a pack a day you're probably gonna want somewhere in the 18-24mg strength range maybe even as high as 36mg...I myself was a pack a day smoker and I vape 36mg in the morning and 24mg the rest of the day, maybe some 12 mg before bed.
Now back to te devices, the 2 most popular e-cig models on here right now are the 510 and the KR808D-1, both are pretty new user friendly but have their pros and cons.But first generally there are 3 categories that users rate models on throat hit (that feeling you get in the back of your throat when you take a drag of a cig), vapor production, and battery life.
The 510 first off is a 3 piece model (battery, atomizer, cart)...it's drawback is it's battery life depending how much you vape can be as short as an hour or upwards of 3 or 4..carts work well but if you find yourself having to top off often you may have to change the filler material in them to something that lasts a little longer..conversely the atomizer is a little work horse and tends to run a bit hotter so it produces great throat hit and great vapor production..(a side note here some flavors do better on a hotter atty (like tobaccos and coffees) some a bit cooler (like fruits)..
The KR808D-1 is a two piece model (battery and cartomizer (combined cartridge and atty))..the cartos are considered disposeable meaning every time you change a carto you're changing an atomizer too, they can be refilled but not too many times but a pack of 5 cartos runs the same price as a single 510 atty (and they do burn out eventually too)..some report a wierd underlying taste to the cartomizers and some feel they don't get enough Throat hit from them or a little less vapor than the 510, but their batteries last quite a bit longer...
There are subforums here for both the 510 and the KR808D-1 and i suggest you read some of those before commiting 100% to a model...
But some great suppliers on here for the 510 are:
Cignot...$35 kit, fast shipping..
Rocky Mountain vapor..more choices in colors, free shipping over $14, fast shipping...
Nhaler (my preference) couple of colors, $47 kit (but a coupon code so it comes to $49.30 shipped) awesome customer service and fast shipping (like 2-3 business days to get to you) but the thing I like about this one is the kit comes with 5 prefilled carts (18mg) plus 2 6ml bottles of your chouce of juice (24 or 12mg) so it's good helping find your nic lvl..
Suppliers for the KR808D-1:
Vapor4Life...they call it a vapor king... reputation for awesome customer service and has a huge fan base thats treated like extended family.
Nhaler..also carries the KR808D-1..
Pure Smoker.. they call it the Ace..has a reputation for good customer service, and seems a bit cheaper on their kits.
I know thats a lot of info but hope it helps..
And welcome to vaping and ECF