in reply to PerlQt on Windows
I would suggest going with Wx. I have used it in the past and it works great in both Windows (Activestate and Strawberry) and Linux. One of the project goals for Wx is native looks. The documentation is a little rough since it is written for C++ but it isn't too hard to navigate and is pretty complete.
There is a demo app of Wx on CPAN but I didn't find it helpful at all.
In Section
Seekers of Perl Wisdom