I print banners using a Versacamm and currently just use grommets. But to make the more durable I really need to sew a hem. I have tried tape but I do not like that and I end up with wrinkles. What kind / brand of sewing machine do I need to do this. What should I stay away from. I do not want to break the bank either, small bank at that. I hear I need a walking foot, other than that. I don't know.