>Going bigger implies a greater risk of loss, should something >go wrong with your card.
I can remember when everyone was saying that about 2 gig and 4 gig cards. Personally, I have never had that be a problem in over 100,000 shots. These cards are enormously reliable and if you setup where they are mirroring each other, it should never be a problem.
Just a perspective
"Extraordinary claims require extraordinary proof " - Carl Sagan