Twenty minutes later, with some serious elbow grease and the help of Murphy's Oil Soap, I had a rather pleasant surprise: a (fairly) clean bathtub! I still need to get some Lime-A-Way in there, since there are some serious hard water/rust deposits near the drain. I think just about all of it will come off, though. Another surprise was that the porcelain is in near-perfect shape. It looks like someone used abrasive cleaners on it, but there arn't any chips or cracks at all. If our stupid landlord hadn't stuck the tub outside, the exterior would likely be perfect as well.
Now I just need to find some feet and hardware for it. As far as hardware, I'd like something like this, in the polished nickel finish like the inset pic. I love the gooseneck faucet design... :) I'd really, really like to have a separate stand-up shower stall, so that the bathtub can just be a bathtub, but I'm thinking our bathroom is really too small for that. As whoever designed our bathroom has taught us, there's only so much you can cram into a 6' by 10' space.