Originally Posted by
dr_lha
Ah, I had forgotten about those damn "MegaExo 19" things.
I didn't forget about them, I never realized they existed in the first place.

Yes, your only way to use a Shimano HTII bottom bracket would require replacing your crank also. For a triple I recommend a Shimano FC-5703 which still uses a separate 74 mm bcd granny ring giving you a lot more choices than the 30T OEM granny. Yes, it will work with a 9-speed chain.