Pricegrabber has it for about $445 right now, so it ain't cheap. Also you need a gigantic SD card. 1GB would be about right. The main issue is to make sure the SD cards are fast enough. For instance these "ATP":http://www.extremeoverclocking.com/reviews/storage/ATP_SD_1.html cards are 60x or 10MBps speed in 1GB and 2GB sizes. "Pricegrabber":http://www.pricegrabber.com/search_getprod.php/masterid=5232648/blsrt=1 has these for $90 at Zipzoomfly. Pretty amazingly inexpensive.
I also got sold an extra battery. Probably just marketed to.
Also had a chance to look at these cameras in person. Have to say the Casio 750 is sure small and the gigantic screen on the back is a big selling point. It is 2.5" which I'm surprised at how large and nice that is, so a good one to consider.