Joanne, You and Sally should have a lot of good times sewing together. She is a 3/4 size machine and uses short shank attachments, which means you can use almost any short shank attachments. Do get your bobbins from some place like Sew Classic as they are better ones. I can't use the Singer ones from Joann's and Walmart in my 99's. The ones from Sew Classic work great.
Is your machine new enough that it has a reverse stitch? Mine are from the 1920's and just have a knob to set the length of the stitch. I have to do it by looks, not by numbers. They are such a quiet running sewing machine. You will love yours!