Thanks for all the feedback guys!
The reason i gave them the slings was so they had a shooty option. 40 stones flying at you

I know most of the time they hit on 7s but if they stand and shoot it could come in handy. I still need to play test em more. Also my army is Roman themed so this seemed to fit.
I do take a naked warlock with them aswell for leadership.
Here is my 1000 point army tell us what you think.
http://www.dakkadakka.com/dakkaforum/posts/list/319303.page