Good thread...
I have to say though, of all these chicks, based off these photos alone, I was really liking Julia Stiles, Katie Holmes, Cameron Diaz, and Jessica Biehl.
Look at the Julia Stiles and Katie Holmes pics... those chicks shirts are covered in sweat. They are wearing baggie gym tops with spandex, and showing that they are actually in the gym to do some work! Cameron Diaz has an amzing body with a great feminine look as well, but Jessica Biehl is the sexiest chick in this thread. Looks like a healthy, hard working, natural, feminine woman. Very much wife material right there.