My sister is looking to get an extra set of rims for her 2002 325xi Sedan.
Depending on the aesthetics, the new rims would either become the winter or summer set.
I'll probably do some poking around other classifieds, but I know our club is a great way to find quality parts!
I have 2 sets of rims that I used on my ex-E46 and ex-E90 cars:
1). 17x8" BBS RX's with a set of semi-worn summer/all-season tires (forgot which ones).
2). 17" of winter wheels with a set of 225mm SP Winter Sport 3D tires on them (2 almost new, 2 with one winter season on them).
Let me know if you want to eye ball or test fit either set.
Will PM you contact details.