Steering woble at 55-65+ Driveshaft?

[Max M4X WW]

Hi, I've had this annoying steering wobble on my 2000 9-3 Aero since Ive had it.

I didn't notice it on a test drive (at various speeds) then once home and in use I noticed the problem. It used to be from ~55-65mph only. But now comes at 'motorway' speeds as well sometimes.

Had my wheels balanced - little to no improvment.

Not yet had tracking done as I'm waiting till after I've fitted a rack clamp/brace (any ideas which one?)

I've recently noticed what sounds like a dodgy front wheel bearing, So I've jacked the car up and had the wheels off - bearings seem fine to me - But the passenger driveshaft seems to have some in/out and slight right/left movement on the passenger side (gearbox end) and the drivers seems solid. Is this normal or could this cause my problem?

Any ideas?

Thanks