I had a cheap e-cig a while ago that sucked. I smoke two disgusting packs of full flavor, extremely mentholy cigarettes every day and I can just feel it killing me. After reading these forums for days, I think I want a provari and whatever I need to drip with, but it's out of my price range. Then I found these power cigs ecigs.com that plug into a usb port and don't even need batteries. Do these things provide the same amount of vapor as the expensive portable types like the provari? Can I drip with it? Is dripping best for a chain smoker? If I'm at my computer all the time, what should I buy??