I’ll echo the advice above that you should buy something nice. Not expensive or too advanced, but nothing cheaply made either. I started with a starter kit from a local vape shop, where you get 2 battery units and two tanks, eGo style, and a nifty little case for around 30 bucks. But the tanks were plastic and i was always getting liquid in my mouth. The batteries were cheap, too and you couldn’t put them in your pocket. Had one snap in half!
Your local shops should have decent liquids to start with. They should be in the right ratio for the device you get, probably 50/50 PG/VG if you go mouth to lung(most like a cigarette would be inhaled). Higher VG for direct to lung(most like a hookah or smoking a joint, if you ever tried that;)
If you were a heavy smoker, and are using a low wattage mouth to lung style device, like the Nautilus, you might start with an 18mg nic, 8-12mg if moderate. If you go with a more powerfu device, sub ohm style, those levels will be way too high, because more vapor production equals more nic into your body. 3mg or 6 at the highest, in my experience, would do.
I started with a Turkish tobacco flavored liquid that was just fine for the transition, then tried a coffee flavor, ended up mixing the two, then later found fruits and desserts more satisfying.
Just stick with it when you switch! You may have to go through a couple of different set-ups to find your sweet spot, but even with the tinkering and extra stuff you have to learn and do, it gets easier every day, and it is waaaaaayyyy better in all aspects than smoking. Within a week, all of my nagging coughs and wheezing went away, and i could sleep through the night without forgetting to breathe!
I hope this helps!