Go to Popular Photograghy's Website and look at their LABORATORY tests. I think you will find that you won't gain much speed any where but fps. You will have a substantial weight gain. I have a 18 month old grandaughter who gets a inordinate amount of face time with my camera now so I know your dilemma. Last week I ordered a 60D after looking at the specs. Did I mention that the 7D doesn't have an articulating screen? Having one means I can look at the baby and she can see my eyes while shooting. I think I will have more freedom to get reactions from her and she will be more relaxed than when my face is behind the camera. FTW I'm feeling that the 7d is due for an upgrade/facelift as it has been around a while now.Maybe better to wait a while on it.