I've just read the Qt4 GPL for Windows will only support gcc (and maybe MinGW) anyway, not BCC or VisualC++ (or it's free equivalents), so it looks like it would be a daunting task to actually build PyQt....
See http://osnews.com/comment.php?news_id=9675 I guess the Qt used in PyQt from BlackAdder just wasn't built with XP support, and if I can't use it to compile PyQt properly, then it's worthless to me. I guess a lot of this licensing crap will change when Qt4 GPL is actually released, but it's still looking like commercial Qt is the only "easy" way to go, and the Trolls are just making a "difficult" GPL version to shut people up! -- http://mail.python.org/mailman/listinfo/python-list