Wanted: Sigma 17-70mm

I'd like to buy a 17-70mm Siggy, preferably the newer F2.8-4 model. Will also consider the F2.8-4.5 if someone makes an attractive offer. I live in Finland so the seller would have to go through with the possible hassle sending it over and I can pay by Paypal or SEPA bank transfer.

Thanks,
Mark