One word of advice. BUY BIGGER than you think you need. Once you get a sewing machine, it will open up a whole new world of possibilities, and you will always wish you had one that would sew another layer of leather.
I have a consew 206, and I never imagined I would need to sew more than its capacity. I didn't have it a month before I was trying to sandwhich more and more leather under the presser foot.