I just wanted to thank everyone for responding to my question. Your reponses gave me a lot to think about. I finally decided that the only way to decide was to take everything with me on a walk. Turns out that the extra pound from the macro really does make a difference, and while it isn't a half bad street shooting lens, I found myself using the midrange zoom and the fisheye much more. My "macro" shots with the TCs were acceptable. I'm still tempted to take both of them, but I haven't decided yet.
Anyway, thanks for helping me think this one through! Amita
