Yeah, all large raw files. It was cool. I could keep going but she was finished with the pass.
I've always been pretty happy with the buffers on my Canons -- it's really, really rare that I fill up the buffer.
When I upgraded from the 40D, incidentally, my biggest learning-curve area was the additional focus modes & operation -- lots of new buttons & commands there, but once I got used to them, they really make a difference. Be sure to check out the user settings, too (C1 / C2 / C3 on the dial) -- these are invaluable when you're alternating lenses or subjects. It's way quicker to program ISO, focus mode, EC -- all that stuff into a couple of these slots and then switch between them as needed. It's little stuff like this that really helps the camera get the job done when you're in a hurry.
Congrats, and good luck!