How much would it cost for Nikon to clean the inside of my camera?

So i have some dust in my camera, and the dust is in spots that i can't get out. ( view finder and inside the focusing screan thing ) I called them and they said i would be able to send the camera to them and they would clean it out for me, but ofcourse i would have to pay them. I still have my warrenty! And i just really need to get it cleaned out sooner or later?

So does anyone know how much this would cost?
A good estimate?

Thanks.
also the camera is a Nikon D3000

Added (1). A couple of hundred bucks… Are you being serious =P my camera costs 550 =/

Added (2). Also the dust isn't visible in my pictures. Just in my view finder, which i guess isn't bad but its annoying. So eventualy il have to send it in.

Also i'm not asking how to clean it but how much it would cost to clean it.

Go here: http://photographycourses4u.com/clean-your-camera-lens/

Helped me when I first had the problems pretty much the same as yours.
Same camera model as well.

Warranty doesn't cover dust. And cost would depend on how extensive the cleaning is. A couple of hundred bucks, I would imagine.

Nikon can and will give you a price for cleaning your camera, but I imagine that it would be more expensive. Any respected camera shop should be able to do it (Ritz comes to mind)

best would be to send it off to nikon, however.