I agree with whats been said sofar. I will also add that i have a 133x card (got it cheap) and the cam. buffer is still the limiting factor. shooting RAW max res. it will not shoot continously till card is full. Once cam buffer is full (4-5shots) it will take 1sec or so for next shot. It does get faster with 133x than a 40x but not in a way that its of any real use. So get the cheap known bard card you can find 40x and up. I'd say...
Hope this helps.
Nikon D70s
Tamron 11-18mm + 18-200mm
Sigma 180mm Macro