Toshiba have announced some new SDHC cards. It will save all that tedious bother of ever having to change cards in mid shoot.
http://www.toshiba.co.jp/about/press/2007_08/pr2201.htm
32GB big enough for you?
That would be somewhere in the region of 1,900 raw files for me, or about 6,400 best quality jpegs.