digital to match Velvia?

Okay, this is just hypothetical, as I won't be going digital for quite
some time (I intend to make the most out of my Dynax 9), and Velvia 100
is simply outstanding. But, as that day will eventually come, and I am
completely in the blue about digital cameras and pixel rates...

Minolta now has a 6 million-pixel body called Dynax 7D, and Canon and
Nikon have digital SLRs that produce 12 million pixels.

The question is: to be able to match the sharpness and saturation of
Velvia 100 and Provia 100F, would the Minolta body suffice, or would I
need the new Nikon or Canon models?

In other words, does digital deliver?

help appreciated,

cheers, Marko

P.S. I don't mind the extra hassle of buying film, scanning etc. as
long as the quality is good. That is the only thing that matters.