Talents??Follow

Ok im just wondering should you just go in one thing liek arms or fury or protection??? because im a lvl 21 pally and doing duel weild right now.. But im not sure what i want to do in the future.. I think i am just gonna go 1h/shield... But ya so should i just go all talent points into one thing or can i put like 10 points in protection 10 in fury and the rest in arms?? whats a good thing to do?? greatly appriciated for comments thanks