And if you just want a plain white or steel color KR8 check LiteCigUSA.net and VaporLeaf.com - good prices and both have cheap shipping. Use regular (not LR) cartomizers with it. I recommend manual batteries.
Best selection of prefilled cartos is at Vapor4Life.com and they have a lot of samplers. If you like tobaccos they have 3 samplers - I have only used cartos from the WOW Tobacco sampler so far and I like all 3 I tried so far (one enough to buy the juice too). Get some juice - you can refill them - and you could probably refill any flavor with a nice tobacco or vanilla (I like Backwoods Brew Vanilla Bean - on my 4th day of refilling a V4L carto with it). And always bring a spare carto or two if you go out - occasionally there is a dud though many of those can be fixed by carefully and evenly lifting the inner circle of the threaded end a bit.
To see a quick refill method for these (and some other) cartos search Ebay for Taryn Spin and watch both videos.
refilling note - take the carto off the battery - I hold a tissue on the threaded end if filling by taking out the mouth-end cap and dripping down the inner sides while rotating it. When done I make sure the threaded end is dry then puff lightly in the threaded end to clear the air channel of any juice.
This will be a useful PV even after you get your better one. The standard batteries give better charge life (280mah) vs most other ~120mm minis (180mah).
And here is a Vapor4Life Vapor King (KR808D-1) guide
http://www.e-cigarette-forum.com/forum/vapor4life/58027-vaporking-user-guide.html