Vaping is such a personal experience, so obviously everyone's perfect kit will be different and we will need more info about you and your needs. This post is more aimed to those that are ready to move away from cig-a-likes and into the vaping world.
I have gone through the past year of lurking in this forum and what I have learned and tried to piece together to my best a good starter kit for cheap.
Are you ready to step away from the cigarette-look-a-likes? If so this opens your choices up a lot...if you aren't then there are still options.
Next: if only using cig-a-likes are you only wanting to buy pre-filled or are you willing to refill your cartomizers?
part b: if willing to get away from cig-a-likes same question
part c: if willing to get away from cig-a-likes there are different types of juice delivery systems available
It is all overwhelming at first but it starts getting easier and it starts making more sense.
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I'm still new myself but best advice I can give is: keep in mind vaping is all personal preference and there is no bad choices...what you decide is what you will be living with and using 
feel free to ask question, no question is stupid, just mis/under informed.
Some things to keep in mind:
- Try to stick to pv's (personal vapors) that have both the 510 and ego connections this way you have all kinds of options when it comes to juice delivery systems.
- Variable Voltage (vv) = everyone's taste is different so you can set your voltage up or down to help suit your needs as well as different juices and different juice delivery systems (cartomizers, tanks, ect) taste different at different voltages. (how many times can I say different)
- Variable Wattage (vw) I haven't tried yet but assuming it is the same principle as stated above for vv.
- Pass-through battery to be able to vape while charging.
- the higher the mAh the longer the battery life
- do you prefer a warm vape (top coil) or a cool vape (bottom coil)? top coil vs bottom coil tanks, to each their own...but go with glass or metal so that there's no worries about tank cracking juices.
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typically I suggest one to purchase the battery from else where spending a bit of money to find one that is your personal style because vaping is all about your personal preference...however if you are looking for just something decent priced that works and don't care about color or style so much :
From
fasttech (if you don't mind buying from china...some are against it...don't mind generics and can wait about 2 weeks, no shipping or handling fees and accepts paypal) a nice silver piece together kit
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