To answer the general question about what sewing machines people are using, I have two machines. The first is a computerized Kenmore which is very easy to use. When my local quilt store had a big sale on the Bernina Activa 220, I recently purchased one. The Bernina Walking foot, needed for quilting, was pricey, but well worth the money because it is a dream to work with. It is smooth and quiet. I have destroyed other walking feet on lesser machines in a short amount of time.
Here is my two cents about choosing a machine. Many stores have sewing machines you can test drive or even have free or low cost classes so you can play with the many of the features. If you are shopping for a used machine, check to see if parts are still available.