I want a quality ecig, not a piece of junk, I don't want to have to use the liquid stuff, and right now I'm leaning towards green smoke.
Not sure if it is still going on but for new users only greensmoke was offering a "free trial" you pay shipping
http://www.greensmoke.com/aff/28320/index.htm?url=http://www.greensmoke.com/trial/
but as stated you can't use any other products with it....but it's something to try if you are really stuck in the mind set that it must look like a cigarette and only want to use prefilled carts.
I have tried the disposable blu and it makes me cough, and the n joy disposable which doesn't make me cough.
What caused you to cough could be the difference in the nic levels, higher nic levels tend to give more of a throat hit
I know at first it is kind of a strange thought "smoking" on something that looks so odd....but keep in mind, this is not smoking, it is actually vaping

please try to clear your mind of anything connecting what we do with smoking and you will soon be much happier and healthier
if you can get past the whole mindset of it must look like a cigarette the best starter kit and could essentially be your one and only kit
would be to purchase a 1300 mAh variable voltage spinner (it's about the size of a highlighter) the higher the mAh a battery is the longer the battery life, you want variable voltage because different juices taste different (better) at different voltages and a spinner because it's easier to read the numbers to change the voltage on.
While cartomizers are nice and convent they can be costly, hit and miss on taste and tend to dry out easily and in the end if you go to trying to refill your own is more of a pain then getting a tank such as an evod or vivi nova which are easy to fill and hold more juice than a cartomizer (the cig look a like nic containers) and you can buy juice a lot cheaper to refill tanks with than buying some premade cartomizer. Plus with tank systems it is easier to see when you need to refill than it is with the cig look a likes and you run it dry and get that nasty burnt wick taste.