Pictures will be forthcoming as soon as I get the car washed/waxed. Promise. BTW Mechanic told me that the Cat stayed warm on the car for a long time after he started working on it, and that it sounded pretty solid, both warning signs that the cat could in fact be bad. I'll probably just put a new cat on it and the upstream O2 sensor for peace of mind as O2 sensors are notoriously fickle and he said he'd cut me a deal on the labor to do both.