2007 Espace Mk4 wobble

Hi,



I've been getting a front-end wobble under acceleration between 40 and 60 mph. It only happens under power, in any gear, and seems to be more of a side-to-side motion than actually coming through the steering.



I've had the wheel balance checked 3 times, and it passed its MOT without any mention of wear in the suspension. There's no vibration going through the rev range while stationary.



Is this a symptom of a worn driveshaft? Is there any way to check the play in them? Or something else?



The front antiroll bar bushes are very squeaky also, and are doing my head in, but I can't think how they might be contributing.



Any suggestions appreciated!



Thanks,



Iain