Lexar 1000x CF cards made a big difference for me too on my 5DIII Buffer still maxes out but and I only shoot raw.. I have been able to get quite a bit more in a burst when shooting sports.. Definitely helped out..
Just did our first wedding.. Brought the 70-200 II IS 2.8L, 50 1.2 L, 24-70 I 2.8L, 8-15 f4 L, and the 85 1.8, along with the 580EXII and used the 7d and 5dII... the only lens not used.. 85 1.8.... I used the 24-70 for a majority of the shots.. I will have to agree that the 70-200 does have some great impact on the images too..amazing piece of glass!
We use both.. Lightroom for minor stuff along with cataloging. Photoshop for real editing.. definately use both all the time... could probalby get by with just lightroom and elements 10... Had been using apeture and since lightroom have not looked back.
Our local meets allow me to get nice and close to the mats.. 5dII with 135 f2 and the 85 f1.8 work great.. depending on the gym, the lighting is definately a challenge at times.. These are with the 5dII and a 135@f2