You're gonna get a lot of suggestions...
My suggestion is to start with a 3.7V eGo system with either eMDCCs (eGo Mega Dual Coil Cartomizers) or Stardust clearomizers and wean yourself off 'bakky. Then, if you're still enjoying vaping, look for a VV (Variable Voltage) PV (Personal Vaporizer) within your price range.
Good luck!
I also agree with Iffy, you'll get a lot of different opinions on what is the best starter kit. My 2 cents, you can't got wrong with an Ego-C, the batteries last a long time, with the 510 connector there are countless tanks, cartomizers, clearomizers, etc. They can get you off cigs, after 50yrs of a 2-3 PaD habbit I was completely off in 3wks.