16's or 17's?

I was just wondering on my Civic 2000 EX looking into purchasing rims for the summer would i be looking to get 16's or 17's.....theres a kid in town with an older civic with 17's and i'm not sure how his wheel's turn.....his car looks like a monster truck with them on. If you leap to 17's what adjustments do you need to make.....camber kit? Lemme know....just raisin another Q?