Okay, I made an appointment at the dealer, but they can't look at the car until Monday of next week. In the meantime, I drove around looking for 5th gen Accords for sale at used car lots. I found a 94 EX model w/ 115,000 miles that was in overall excellent condition. Michael, you might feel a bit more comfortable (I know I did) knowing that this car made the exact same noise that we've been hearing from our engines. I wonder if it's unique to the VTEC engines? I'll have to find an LX and listen. I think this completely rules out a spun bearing, it just wouldn't be that common (IMO)
I'm going to check for TSBs.