I like Wizard Labs, too. I ordered nic, pg, syringes and some flavors from there, then a bunch more flavors from ECX. I probably had my stuff for a week before I mixed anything and even then, all I did was split up the nic, lol.
I spent a LOT of time reading, asking questions, MORE reading and finally looking at recipes that sounded good. When I did go to mix, I felt more comfortable than I expected to, followed a few recipes and they turned out pretty good!
Practice safety, always. Good luck!