there's also the bb from Bicycle Quarterly that looks nice. My mother has an old Peugeot mixte. She wants a bike that has larger tires, but I was thinking new derailleurs, crank, 700c, and she's good to go. She doesn't listen to me though, when Im in the position to help her with it I'll probably find out she threw the Peugeot in the trash and got a big box bike.