^ I like that suggestion but he loves his 17-40 so it's probably a deal breaker.
The 70-200 with a 50 in the middle will be a great setup. With the 50 also for really low light or shallow DOF. As for IS or non-IS, depends what your doing. But usually, IS is of great benefit with max f/4.0


), but whether you'll use it much depends a lot on what you like to shoot. It will fill in a large part of the gap up to 100mm plus give you the flexibility to go longer if you want/need to.
