I was told an estimated 5% increase over 2008's price, but this is through Pentagon Car Sales - a factory direct program from BMW AG (I'm military stationed in Germany). My total OTD price for a 2009 135i was $33,882 - the only option I chose was the Sports Package. I wrote a quick reply here: http://www.1addicts.com/forums/showthread.php?t=13566
to the 2009 wholesale/invoice pricing. Maybe it'll give you a rough idea for '09 pricing.