SD vs CF and the A77

I have the A700 & the Maxxum 7D before that so I have CF cards. Since I'm very interested in the A77 I've looked at CF vs SD cards on-line and unless I'm missing something in general it seems like CF cards can be had that are faster and with a greater capacity. Being that the A77 is supposed to be 24mp and can do 12 fps (rum ors) it seems to me that CF would be a better choice. But that seems to be off the table. Unless you have a good source for afordable large capacity very fast SD cards. Is Sony coming out with high capacity high speed (likely over priced) SD cards.
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mcl