Juices there are a plethora of vendors and flavors out there, also they are subjective, what can ring my bell as the beezneez, can be one that you go ewwww tastes like cat ****, so I will make vendor suggestions
Mt. Baker Vapor - great juices, great prices, fast shipping (Washington State)
Heather's Heavenly Vapes - great juices, excellent prices, fast shipping (Georgia)
Virgin Vapors - great juices, great prices
Alice In Vape Land - great juices, and great prices as well
Other Suggestions there are a lot of good juice vendors that can be found in the Vendors Section
Now onto the vaping in general
1) Drink plenty and plenty of liquids, preferrably water, tea, and green tea, lower your caffiene intake the first couple weeks until your body gets climatized to vaping, tea and green tea being the way the human body works, there are chemicals in teas that when they are high, the body goes into flush and purge mode, this purge mode can decrease the dependency on the other chemicals in cigarettes other than the nicotine.
2) Some people can pick up vaping and put cigarettes down from the start, others, especially those with addictive personalities by nature, have to ween off the cigarettes and transition into vaping the first couple weeks to first month, also the period of how long a person smoked cigarettes, there are other alkiloids and chemicals you are going to have withdrawals from. High Stress situations, going to bed, waking up, after eating, driving down the road, these cues generally try vaping at first, driving keep vaping as you go, but after dinner or just waking up and such, try heavily vaping at first, still have a teeth gnashing craving, step out to have 1/3 to 1/2 a cigarette to subside the cravings for the other junk in a cigarette. May sound counter-productive, but remember vaping only replaces the nicotine, not the other 3999 chemicals and byproducts smoking generates, eventually after a couple weeks you'll see your cigarette consumption taper off until finally you'll spark one up, then the "ICK, nevermind, like my vape taste better", stomp out the last cigarette and never look back. Do not look at each 1/2 cig you have to smoke after these cues as a defeat, look at each cig during the day you did not have to smoke as a victory
.
Good luck, welcome to ECF and the Vaping community, and great wishes for your success.