describe the noise more and how when it does it...?
It could be a bushing that just needs a shot of silcon lube or a wheel bearing... if it's the cv joint usually if you turn it to the lock and accellerate kinda hard it will make a clicking/poping noise...
as for cost on the cv joint replacement.... the shaft could be around a 100.00 and labor prolly around 150.00...
I have charged 80.00-100.00 and change them in a hour....
you can try to look up the cost on partsamerica.com