After reading a bunch of really informative threads here, I feel like i need to do something about my 2000 SPI that hasn't dropped a valve seat... yet, and in this economy I want to save some money. Im due for a timing belt change soon and that would be a good time to do something about the seats.. Has anyone found any kind of aftermarket or backyard solution to this problem? Are there any aftermarket seats with more interference? I cant seem to find any. Or is it possible to "peen" the stock valve seats and regrind them if necessary? I know the proper solution is engine swap / get a zetec, but I'm not trying to break the bank right now.