Yep, I have got it good... so I change the complete thrust arm assemblies and bushes both sides and get the wheels balanced and it's still there!!
The body is literally shaking from side-to-side... no vibration through the steering or brakes - just the body shaking at the front.
My only other guess could be lower control arm bush/swivel wear? The looked and felt OK while I was under the car though...
Any other ideas before I bite the bullet and buy yet more arms?!?!
Thanks!