I'm a big fan of FRC, but a lot of those techniques are about "special-case" UIs, the way you see them in Web UIs or "multimedia" applications, not pleasing form and widget layouts. That's a bit of an intermediate step between just spewing forth UI elements and constructing fluid animated, mirrored list displays. And sadly often neglected, especially if your tools don't take care of it automatically (layout engines, Interface Builder etc.). Java and Tcl didn't have to look that bad, but sadly they often do.

Or, well, one could just use JGoodies ;)