I have the same problem with changing gears but not with the fifth, with the reverse. A Ka gearbox doesn't really brake since it was made for "abusive city driving", but every now and then needs a bit of lining up. dont really know how much that could cost, since i didn't do it yet.
The front noise that you hear is made by the bearings of the front wheels & suspension. have them all checked in a garrage. they ussualy wear out every now and then since it's a small car and the suspensions are quite "thin"
Shade, November 2007