Switching to jungle, Who?

Hey guys

After several weeks of feeling like my junglers can't preform there role at all, I've decided to take it upon my self to fill the role. I know the basics of jungle and really just need to pick a few champs to focus on. Nothing overly complex or niche, but still fun and not completely brain dead. Decent through out the game and not 100% gank reliant, but can still gank.