Thanks. Ive been using wxFormBuilder so far, its very nice and simple. Im just looking at adding custom widgets now to it, specifically some OpenGL canvas and some test custom widgets to see how much flexibility i have before i commit to using it for a larger project.
Hmm looking at that comparison table, think maybe its out of date with FormBuilder v3, because it doesn't show it as having a colour picker class, which im sure i came across in v3
but havent used yet.