I , also, am thinking about a walking foot. I want something that I can use for sewing the layers together and also for free motion sewing. Does a walking foot do both? If not, what kind of foot should I get? My machine is a Viking 6030 (ancient like me) but sews like a dream. When I look for this model, I am unable to find the machine number--even on the Viking website. Suggestions would be most helpful.