>I use sandisk extreme pro with mine. > >No complaints
Echo that. I just bought a single SanDisk Extreme Pro 16 GB that writes at 95 MB/s and it kicks a** in transferring RAW 14-bits on CH. It's a little pricey at $40 for 16Gb. I also have a SanDisk Extreme 16GB that has a 45 MB/s transfer rate in slot 2. If you are going to do a fair amount of sports,lots of action etc I'd get a Extreme Pro as your primary. Otherwise you'll be golden with any of the major brand Class 6 or 10 (I've got those too).