As stated above, the cartomizer tanks are great for the cartomizer lovers. Just don't let them run dry, since they have a poly filler inside the cartomizer. Like any cartomizer, the filler will burn if allowed to run dry. The cartomizers are more flexible in things such as coil resistance and single or dual coils. Your Provari will allow you to really play around with its variable voltage.
I have been using the Vision Tank for a week now, and really like it. It is pretty sturdy, accepts a standard drip tip, and gives you the CE2 experience in flavor and vapor. These tank have a coil that is rather low in resistance, about 1.9 to 2.2 ohms. They work on your Provari, but due to their design they probably won't like higher voltages, and you will find yourself limiting the voltage down to a more standard 3.7 to 4 volt level. At higher voltages, depending on your juice, they can get to running dry or tasting bad. But of course, you can play.
Enjoy the world of VV and CE2's!