Janome 6500
I also have the 6600P and I love it. There are some small differences I think between it and the 6500, but I couldn't tell you what they all are. Shank length for one and I think the walking foot style. There is a yahoo Group forum for Janome 6500/6600's you could check out for some feedback too. Price point is reasonable for all that they do and the quality.