Ok I tried them out:
-the MX 518 and G5 are the same which didn't have enough of a hump
-the G9 was simply to short and to small and flat
-the Sidewinder was long enough and wide enough. The hump appears to be the same as the MX519 and G5 but at a different location.
What surprised me was MS's 6000 mouse
. Although not ideal for gaming IMO it was extremely comfortable and reminded me of the MX1000 except it was much taller. It's shape is contoured around the hand and was very comfortable to use despite it's unusual height. If anyone is looking for a none gaming, wireless mouse I ask that you check this out. I am not sure if this suite those with small hands but for those with large hands this is a must try!
Here is another website discussing it:
As you can see you actually palm the mouse instead of gripping it.