I have a new Janome 6600 that I think will serve me for at least the next ten years. It is wonderful, has a built in walking foot, and sews wonderfully. I was using those horrible machines sold at WalMart before then and the difference is amazing.
That said, my favorite machine is a 1957 Brother, which looks like a Featherweight. I would NOT recommend a new model but their old ones are phenominal. It only sews a straight line but it does so without any dropped stitches, any change in the length, the tension always seems perfect. It is the perfect piecing machine. If you can find an old Featherweight or something similar, I definitely recommend getting it.
I have to agree about finding a dealer that offers support. The place I bought my sewing machine from has a policy where, as long as I own the machine, I can bring it in any time and they will show me how everything works. I think that is great because I don't use all the features and if I need a quick refresher course I know the dealer is always willing to help me out with a class or two - free of cost. They do this with all the equipment they sell, including the Gracey quilt frame. I've dealt with dealers who won't stand by their product so I really appreciate finding a place like this and being able to buy from them.
~Tiffany