I just picked up a Janome 8900 QCP demo after reading all the comments on this and other threads. I'm so excited and can't wait until tomorrow to play with it. I am impressed with what it can do: the salesman sewed through a 1/4" piece of leather with a regular needle as well as sewing a seam through several layers of denim material. I had fun sewing through the denim as well as playing with the stitches. It also came with a sew steady-type table and a large number of feet, including a 1/4" foot.
It's replacing my Pfaff Performance 2056. But I agree with C., do your own research and testing to see what meets your needs.