They sell blister pack starter kits that would be a good first choice.
A buddy of mine bought an eVod starter kit that he likes as well.
Saw your other thread. I would steer you away from the pre-filled cartos. Although they seem easier, they are a pain and not as cost effective as other delivery systems.
You can
buy batteries with toppers already included, try a few at $5-7 and buy a few
juice flavors for another $5-7 each as opposed to pre-filled which will cost about the same for 5 of them and last you 1/16 of the time.
Get an extra battery, you will thank me later