I agree that a local dealer that provides classes is a must.... Bernina, Janome, and Viking are all wonderful machines but each brand has it's own "personality" and "features". I have a local Viking Dealer that is GREAT, therefore, I have had 5 Vikings and love them!
Test drive all the machines you can and pick the one that you enjoy and is easy for you to use as long as you like the local dealer that you feel will help you. This is even more important with all the new computer machines. Be sure to take the classes so you really understand the machine. I'm sure you will find the perfect match...