http://www.e90post.com/forums/showthread.php?t=354701
There is a meet this weekend where ding removal will be done at a discount by an experienced guy. Hope to see you there. Lots of different cars... I will be there hanging out.
Otherwise, call up Dings Plus... dunno how much because you didn't post pics, but figure minimum $75-100 and upwards depending on difficulty and size.