I bought a Blu. It comes with 2 batteries, 2 atomizers, and 25 cartridges of assorted flavors. Along with a "pack" that charges the battery you aren't using. So i charge my pack at night with my cell phone. It was around $60 for the kit.

After all of the research I have done into the devices and the liquids, i'm not sure if i would recommend the blu. Personally, I'm pretty happy with it, It's a good all in one starter unit. But battery life is a little lacking, and I could use a little more power.

If you are interested in them, i would recommend doing some research before you buy.

http://www.e-cigarette-forum.com Is a fantastic source for info.