Re: 146 steering problems
Get someone to check your alloy wheels. I've just purchased an Alfa 145 and one of the alloys needed to be replaced. The inner wheel was damaged. It was fine up until about 70mph and then the wheel would wobble. It kinda felt like a bad wheel bearing. He replaced the bad wheel with a spare and took me up the motorway, and the wobble had dissapeared.
Not sure if its the same problem as you have, but get someone to check all your alloy wheels. Even a slight dent or bend would cause it.