Like you, I struggled with Nancy Walsh's book, but, like
you, after creating a couple of applications things began
to come clearer. I've written GUIs using X and FoxPro and
for me the process is the same, initially confusing, but
gets easier the more you do it.
What I would like to see is something along the likes of
a Perl/TK cookbook like the Perl Cookbook. Learning by
doing has always worked for me, but I learn better by seeing
how others do it. (Is anybody from O'Reilly reading this?
I hope, I hope, I hope)