Yeah, thanks Brant.

I was mainly just wondering the difference between a 90mb/s SD card, and a 90mb/s CF card, both sandisk, and both the extreme pro. I am struggling to understand why the CF's are so much more expensive if they are only capable of the same speed. But it may come down to the supply and demand which you speak of. Might end up going for the CF (I already have 1 fairly fast SD) simply coz it'll mean I can put both CF and SD in at the same time and either backup to one or shoot to one after the other.

Thanks for your input anyway.