Good luck - I actually recognise the car as one I test drove a few months back. I walked away as to drive in a straight line I had the steering wheel at 5-10 degrees from normal - perhaps this has been rectified since then. The ABS light also behaved rather like an old choke light - on for the first 5 minutes and then it disappears.
As you mention it's worth getting it checked out and don't be surprised if the first bills are high. I get my surprise tomorrow when my 137,000 Storm gets it's first major service since I bought it.