You have 2 choices that are equally highly rated. The Bosch Icons or the Valeo Ultimates. Some people can find the Bosch ones locally and others buy the Valeo's from Tirerack with their ongoing rebate (buy 1 get one free).

Here is a good read:

http://www.xoutpost.com/bmw-sav-foru...te-wipers.html

Here is the Valeo - Tirerack link:

Valeo Buy One Get One Free Offer

You might also want to consider applying Aquapel in addition to the new wipers.