you can buy 512 MB SD card. SanDisk is good enough. Also check the sandisk website for compatible cards.Don't buy single high capacity SD card like 1 GB or more.It's better to go for medium sized cards.Every new card must, must be formatted through the camera before use (not through PC).
I just bought a Canon S80 and it comes with a (rather cheap) 32MB SD card. I am wondering if anyone has any input as to speed, type, etc. of supplemental memory I should get. Any experiences with this? Thanks in advance.