So... just got the DA*55 and boy, am I very happy with it so far. Extreme low light shooting, and focus is precise and fast. And the rendering... WOW! It has got some special x-factor composed into every image I can tell you that.
The limiteds will have to wait in my case, but for now I'm certain I've got the lens that I desired. The OOF areas are a dream even in low light!
A quick sample I took as one of the first testing images (got some of my best shots yet of my 11m son, but I have a thing with not wanting to post pictures of him to the internet) :
This thread has been so helpful for me, I appreciate everyone's help!