This is one that I've been looking at:
http://www.thequiltingsolution.com/homesteader.html
Big M bobbin, uses regular sewing machine needles, 22" throat - $4600 including shipping. Those were the three things that were most important to me, but it also comes with a twelve foot frame.
You can add a stitch regulator and spend more or you can get a smaller machine and frame for less - check out their site.
