ok, I'd say good starter especially if using a riva is the carto tanks. the LR 1.7 is a great option. using VV you can take it anywhere between 3.7v to 4.1v. any more than that is gonna burn the juice big time. the Ce2's are ok, they bring out more flavor but sometimes dont last as long, and sometimes get more burning flavor if wick isnt kept wet *in general*. So i would say a carto LR tank would be good for starters. And the flavors, the one that everyone that tries will tell you without a doubt...TWINKIE. I prefer the cookie dough. Snickerdoodle is another big choice for most. Now if you like tobacco flavors. the wyatt earp is great.