First, it's Vaping. Second, my advice would be to read as much as you can here on the ECF. People will try to convince you that "This Mod is THE BEST !" Don't listen. Start with a basic start-up kit. Having over $1000 of equipment sitting unused on a shelf six months from now would suck.
Try several different flavors from several different vendors. Sorry, but all tastes are subjective. Anyone who tells you "These Juices are THE BEST !" are merely stating their opinion. What I like (NET, Bakery, Sweets) might not appeal to you.
Don't be discouraged if your first couple of tries are unsatisfying. ANTHING is better than tobacco.
Good Luck on your Journey.

Yup on all this.. start small but not too small. The only thing I tend to recommend is to get something still decent.
The advise I would give is:
1) Consider skipping the Ego-types (the smaller e-cigarettes/pen types) and such, as they are no longer the best "starter kit" as they are very limited and many smokers that go with these are so disappointed that they go back to smoking due to the bad experience and believing that they (the ego-types) are "standard vaping". Also, there's a LOT of them out there that are really cheap crap and getting a decent one is not that easy.
2) If you're planning to vape for a while and want to invest in something that will last a while, look for mods that you can switch out the battery, so that when the battery dies, you can replace it, or have a few spares for on the go (and get an external charger). Higher Wattage is not really needed, many vape a fairly average wattage, and the larger mods (dual or triple batteries) can be great to have for battery life... my single battery mods require 4-5 switch of batteries (or requires recharging) for a full day's worth of vaping, while my dual mod, will last me all day. But this all depends on what you use and the wattage needed.
3) Lots of liquids, I mean lots of lots. If you're somewhere that stores can let you try some out, do it, lots of flavours, blends, etc. some can be great, others might sound good but won't be to your liking... and in time, you might consider DIY (do it yourself), as it's a lot cheaper, and then you can figure out the flavours that you like for yourself.
4) building coils and such, if you're curious about it, it can be very simple or you can go more advance. Depending if you go with a regulated mod or mechanical one.
And just ask away...