Something like this one should be perfect for you. Again the key here is proportion. If you have small feet, don't go clomping around town with huge Ronald MacDonald sized platforms. You'll look like you have weights stuck to your stick legs. You can go for a bit more height, about 3 inches or more.
Wedges are good.
Too big wedges will break your legs. A chunky wedge like this one is not an option for you. Copyright 2000 MediaCorp Interactive.