The other people I have asked about this (oh this is SUCH a girl-thing, isn't it? ) - the women I have asked said "nice" slacks or dresses, but CASUAL. The men have said shorts and anti-slabbing T-shirts (JUST KIDDING!)

No seriously - like Greg said he was wearing... shorts and polo shirt - that kind of thing.

I'm 98% sure that I'll be wearing flat sandals - which elimates "too dressy". And after living in Phoenix 18 years... I won't torture myself with the wrong clothes in the desert. To get real specific on wardrobe... I am thinking a longish summer skirt - that type of thing. Something dressier than a sundress (or my favorite outfit which are my over-all shorts... hahahahahaha) and more casual than a "party dress" and a lot more comfortable than my business suits.