2001 K11 knocking / squeak?

Basically, there's been this annoying squeaking coming from the NSF of the car - i thought this was probably something under the dash, until i opened the window and it's even noisier outside the car!

Getting hold of the NSF wheel and giving it a shake, there's certainly a squeak coming from somewhere on the suspension but more than that there's a knocking as well. I thought this might have been the driveshaft, but holding that while shaking the wheel i can't feel any telltale banging.

So, what else could this be! I changed the track rod end last year and lets be honest the whole suspension setup isnt that complicated! Any other thoughts / experiences, i will have a play with it on Friday and start with the gearbox mount, as the knocking feels further back than the actual wheel.
 
Hmm, had another look - caliper was loose and the strut top is shagged, if you rock the wheel the top of the strut moves all over the place
 
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