Welcome to OCDO!!!
My 2 cents:
The .45 is not the end all be all cartridge. Nothing wrong with it but there seems to be a lot of myth and legend to the caliber.
You will get more 'looks' from people, than a white guy. Some police will be more likely to question you. There are still incidents of white's getting unfairly treated by LEO whle carrying, and you're more likely to be then the average white guy. How much so, who knows?
However, I do not think cops will open fire on you just because you are OC'ing. If you are nervous about it, go to one of the get togethers in your area, it will put you more at ease if you are not the only one OC'ing.
I am not black, nor do I play a black guy on t.v.