You need CF cards, not SD cards. Also, I use a Zoom H4n and I think you would be far better off. You can record your audio using XLR input or the 90-120 degree directional mic on the device. Syncing the seperate audio/video files in Final Cut is a breeze with Pluraleyes.
Get yourself a Manfrotto tripod and a quick release plate (I use Manfrotto 377) so you can jump between your tripod and your handheld rig fast.
Last thing, I don’t know if money is an issue or not, but if it is I say go for some cheaper accessories and put that money saved towards glass! I’ll take a nice Zeiss lense, a steady hand, and some stabilization in post over a $1,000 handheld rig any day!