I don't know how you feel about buying an expensive item on Ebay, but there is a Pfaff Quilt Expression 4.0 auction that ends in about 4 hours for $1399. I love this machine and paid just under $2000 for it last year. Has a 10 inch throat and all of the bells and whistles you can imagine, including the IDT (built in walking foot. My dealer is having a special on this machine I think for $1799, and the QE 3.0 is $1299 w/10 inch throat but less bells & whistles.
Good luck and have fun w/whatever you decide :-)