They are only 9 speed, but they were built with a shim system to allow you to move the levers closer to the bars for people with smaller hands. Not sure if Shimano is still making them, as there were a ton of them on eBay (not so many now). The trade off is the new 10 speed Shimano is noticably thinner than the 9 speed, so will be more comfortable riding on the hoods if you have smaller hands.
http://cgi.ebay.com/Shimano-ST-R600...ryZ36140QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
My wife also has small hands, and I was going to swap these on her 9 speed 105 bike. She decided she was comfortable with the 105s.
I also ride Campy, and love the feel of the hoods. Given they are narrower I had her try them on my bike. She didn't like them, and from the drops she could not use the thumb shifter as it was too much of a reach. My teenage kids could reach, but didn't like the thumb shifter. So, they are all Shimano. (I have failed in my Campy responsibilities to pass this down a generation. My Campy-club membership will likely be revoked).