Ive had mixed results with this so-called wonder fabric too... while
there are exceptions to the rule i think you generally get what you pay
for her, and most of the lower end (read sub $400) goretex pants,
jackets etc have a plastic layer somewhere in there. This completely
engates any positive effects of the goretex, you might as well be
wearing a garbage bag. Breathable jackets that really work are pricey
but they are out there.

On the plus side, breathable wonder fabric shirts sure are getting
cheap! I often get them for $10-$15 on sale reduced from $100 or more.
if you're not too fussy on color/style you can be smiling all the way
through the crappy weather ;-)

Shaun