I would make a list of the features you can't live without. I would go to the dealer of the machine you currently have and see if they have any used machines that fit the bill. By staying with the same manufacturer, you can use the same feet on both machines. If you just need a straight stitch, I would look at a singer 99, or 99 clone. It's a bit bigger than a featherweight, and usually quite a bit less expensive.