Quite apart from real cross-platform capability (rather than "it works on Linux and you might just about get it to work on Windows") Tk can look good if a bit of thought is put into the design.

Another Tk tip is to make use of the standard dialogs, which should use the dialogs provided by your OS (if any). For example on Windows you can use the standard file open and colour picker dialogs.

Have a look at perltk.org as well, lots of examples are available there.

Kevin O'Rourke