Thanks for all the quick replies and advice!
feline fanatic, thanks for getting these links to me so quickly.
I just went back out to check on Bindi. She's up and moving around (still limping). I looked under both feet, see no swelling or lumps of any kind. I felt her legs, both feel same temperature (no fever?), I don't think anything feels broken.
Could she stand on her leg if it was broken anywhere?