Thanks, Zacster. Based on the advice so far, and on my parking options, it looks like I'll probably only use my beater bike to ride into work. I'll be able to lock it up in secure storage except for maybe one or two hours a day, during which times it'll need to be locked up outside. On the weekends I'll just have to take transit, take my chances with all-day outdoor parking, or find a garage with bike parking.