I just ordered parts at this site, which happened to be the cheapest I could find, but I can't tell you just how nice this guy is!!
http://www.singeronline.com/ The owner, Ray, is over-the-top helpful and even offers to walk you through installation by phone- for free
Anyway, I just thought I would share. In this economic time, it's always good to help the small business owner...especially such nice ones like this!
Have a great day