D and Write Acceleration CF cards

[Andre Langevin]

I may have a used D coming soon.  I would need to know what are the 
best options for digital film media.  (I have not followed any 
discussion about the D as it was not in my plans to get one soon!)

Is a CF card with Write Acceleration a good feature?
Is any card over 40X an overkill?
Should I buy only reknown Lexar or Sandisk cards?
In the absence of a card reader for the moment, how long takes 
downloading a complete 1GB card from the camera to a computer with 
USB 1?

Anything else I should know for the moment?  Or is there a page or a 
post that tells all that a D user has to know (green button, etc.)?

Thanks,
Andre