If you do a search on the QB (upper righthand corner of the screen) on Juki longarm, you will find several threads about it.
If I could buy my dream machine, it would be an Innova with lightning stitch. There are a couple of Innova groups on groups.yahoo.com with good info.
The Juki is a lot newer than the Handi Quilter and likely does not have the same support. If it were me, I'd go with the Handi Quilter.