Great timing this topic is! ;-) I was just looking at these, and thinking about getting the "plus" kit:
http://www.hinterberg.com/cat-Frame_Kits-69.aspx
But hearing (reading) you all talk about working with the round Hinterberg hoop makes me wonder if that's a better route? I've got a king-size quilt I'm going to hand quilt (am I nuts or what?) and a standing round/oval hoop just seems like it would be more difficult to use than a rectangular standing frame. Thoughts?