If you give me a week I will have this setup installed. I just got a shipment from ECS with front M3 control arms, all new suspension bushings, koni yellows with Eibach sport springs. After a long time of review my options I went with this setup for my DD. So far everything I have read says this setup will be actually much more comfortable while being sportier than the stock sport setup.
If you want some pics of this setup check out
http://www.e90post.com/forums/showthread.php?t=869356