QUOTE(Chriselda @ May 23 2007, 08:57 AM)

i figured it was going to be my camera. i currently am using it on a canon rebel. and i have the Sandisk Ultra II, a Lexar 80x and some other Delkin cards. It was never an issue until i started shooting raw. I won't be getting a pro body until Fall so i want to get as fast as i'm able to with the memory cards. I'll be getting the Canon 5D.
thanks!
I will mention the simple facts that there is a Compact and SD card guide on Rob Golbraith's website. I think that's the right spelling, either way he's a big camera guy and Google will point you to the right website either way.
My point being is the miniscul differences in SanDisk Ultra II's and III's are exactly that, miniscul.
I shoot and own 14 CF cards, 12 SanDisk Ultra II's and 2 RiTek Pro Lines.
I shoot RAW mode exclusively, nothing but. The camera will limit you no matter what card you put in right now.
Save your money and buy SanDisk Ultra II's. On a 5D (due to it's larger file size), I'd recommend a couple 4 gig cards.
I personally shoot 2 gig cards right now and will move over to a larger card once I get a couple of 5D's as well.
This opinion is based upon owning and shooting with Original Rebel 300D, Rebel XT, Canon 20D, 30D, 1D Mark II (currently) and even knocked a few frames off my buddies D70.
=o) Good luck. Hope I helped.
-tmiller
Tim Miller Photography
http://tmillerphoto.com