Well if this thread didn't just spontaneously combust into a life of it's own ...

To answer the original question

Shimano Ultegra STI-6700 and and Dura Ace STI-7900 are the only two that have concealed shifter cables. Both are ten speed. Anything prior to that has the cables coming out of the top side part of the lever including Ultegra 6500, 6600 and Dura Ace 7700 and 7800. I'm not up on what Campagnolo or SRAM offers as I only run Shimano gear.

We now return you to your regular flame war.