Depends what camera but 8 Gig should be enough unless you plan on shooting hour long HD clips.
You can thank me now 16 gig 30mb/s swag. 44.75$ too.
It's for a T2i, i don't think i'll be planning to shoot hour long videos maybe more of small clips here and there to put it together. Probably 30 minutes worth. Thanks for your link, i might consider. I just don't want to buy a 16GB and end up never using over 8GB, it seems wasteful to me. Thanks for your link, i might consider.