512MB, so roughly 2500 blocks. No need for a memory card unless you game HARDCORE, since most games only occupy 1 slot, except for red steel...Which occupies 5..
i acutally heard its best not to take the Wii internally because of its dosage. but if you do it would be best to split it in half and wait atleast 4 hours to take the second half. but you could totally bi-pass that by taking it anally.
