I got mine from RRO (well I haven't got them yet, I just ordered them) - they are US Wheel which is a very reputable wheel manufacturer - as far as pricing - I think that RRO is around about the fare going rate.....good luck! I will post my impressions once they are on the zuk.
Check out these people http://www.pitstopusa.com/default.htm.
I have not ordered any wheels from them yet but I called them to ask some questions the other day and they practically bent over backwards to help me out. I needed a measurment off a rim that they didn't have so they went out to the warehouse and measured one for me, then CALLED ME BACK IN OHIO FROM CALIFORNIA. I was very impressed!
"Oh he thinks he's so bad,... ... Watch, I can do that!!"