Welcome drummingchef, glad you found VT this soon into your e cig experience. I too started with the cigarette looking ecigs and was getting frustrated and thought it wasn't going to work out well. But then, I found VT and everyone help direct me as to what to buy and where to find videos on direct dripping, refilling carts, and the wonderful world of cartos and tanks. When I got my ego from VT Store, I was in heaven. Within a matter of minutes I was filling and vaping with a cartomizer. Man what a difference! A week or so ago, I ordered the Tornado Tank atomizer and carts from Totally Wicked. Unfortunately the atomizer did not work (DOA), but TW quickly responded to my email and instructed me to send it back to them. This does happen occasionally. Like everything else, sometimes things just don't work. The great thing about VT Forum, the members, with their experience and feedback, helped me find good vendors to buy from so when something happens I don't have to worry about customer service. No matter where you get juice from, that is not returnable. So at first, order a small quantity to see if you like the taste and the nic strength. Make sure you check out the difference between PG and VG. I'm sorry but I am still quite new on VT forum and I haven't been able to figure out how to post links to videos or web pages. But, PG and/or VG is what is added to liquid nic (besides flavoing). PG is thinner then VG and if you are direct dripping VG is great because you get a lot of vapor. But when you are filling carts/cartos you would not want 100% or a high VG. Buying prefilled carts/carto is not the best idea. They are so easy to fill your self and its less expensive.
Check out the forum, do searches or just post any questions you might have. Experience vapers will be able to answer any of your questions. Also, VT Store has some really good eliquids and they sell empty cartos. I personally love their Dulcis and Midnight eliquids. Their prices are comparable to the other reputable vendors and they have super fast shipping. They stand behind their products and the customer service is the best.
Good luck and welcome again.