Enjoy!
If it's anywhere near as nice as the 35 (which I have and love), you won't be disappointed.
I already have the older Sigma 50 f/1.4 which is a completely different animal.
Very nice bokeh and sharp when stopped down to 2,0.
I've passed through the bokeh phase though. (similar to the HDR hole)
I shoot mostly between f/4 and f/8 these days.
Post some pics.