motif qt and gtk

[Micha Feigin]

I am looking to start some graphic programing and the folowing toolkits
are those that look most apropraite for serious user interfaces and
graphics.
I was wondering how apropriate each of them is for writing serious
programs, and if anyone can give me a comparison, or point me to
information concerning the abeality of each of them.
Any recomendations of where to start?
Thanx
[EMAIL PROTECTED]