How much did you pay, if you don't mind me asking.
If you haven't already you should go over to volvospeed.com, pretty good bunch of guys there and a lot of usefull info. My username is there same there, although I don't post as much since I sold the car (sold my 854 about a month ago).
The OE wheels tend to look really nice on the car but some argue their quality. I went with aftermarket because they were lighter and stronger, resembled the volans somewhat too.