Matt,
I understand now. I would go for it, for the joy/pain of learning new
stuff, but understand if you are more comfy with WPF.
I have just skimmed through a few API docs and it does not look too
heavy, providing you have done some JavaScript before.
If possible, please share with the group, how did you do it in the end
and what were the major pains and nice surprises.
All the best!
Daniel