Iphone 4 buttons/Front Camera?

All the buttons on my iphone 4 are not working apart from the home buttom.
The front camera is also broke but the back is working fine!
I'm not sure how it happened but they've not been working for about two weeks!
My phone is under warrenty still but it's not insured.
What should I do? Would I be able to fix them myself or would I have to take it to a shop or even apple?
Also if I took my phone to apple would they give me a new one or make me pay to get the buttons and camera fixed?

Take it to the apple shop they will look at it and fix it for you.

Take it to the apple store… They'll fix it for sure./

You can let Apple deal with it, they will fix it BUT it will depend on how the fault happened to if they charge you or not. They do not cover damaged caused by users dropping it for example.