Originally posted by RonHendriks1966
With a class 6 card you can run everything and even some classe 4 card can record FullHD movie. I still recommend class 10 cards.
I have to slightly disagree with you here on the class 10 cards Ron
I'm using class 4 ultra II Sandisk cards and can record the full max (4GB highest quality equals about 5 minutes 25 seconds) without a problem. Files are saved and ready for playback pretty much instantly.
Now there is a big difference in the class speeds between different brands. But considering Sandisk I would advise to go with the class 4 cards, if it's video that you want to shoot.
For pictures however, I agree a class 10 would be advisable. So if you only want to buy one card, go with the class 10. It seems to me though, that it would make more sense to pick up a cheaper 16/32GB class 4 card for video (or probably a couple) and another class 10 card dedicated to your photo needs.