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Thank you ladies for your suggestions. I will take them all on board.
Sukkie, no, it's J'burg on 25th November and she says it'll be warm but it's an afternoon wedding (no big evening thing) so I didn't want to be over the top but as I've never met her fiance or his family I also didn't want to let her down. I love the idea of a floaty sort of trouser suit. I did think about buying it over there but didn't want to be too stressed about it and, yes, the rand is good which means the wedding is cheap (for us). Thanks again.