The standard freebie is 8GB sd. With SITEX round the corner, you can consider dropping by..
normally will not consider getting dslr at sitex but since this will be my first dslr, getting at sitex where they throw in bag & dry box which i may consider but expecting it to sell at $999 at sitex with the so-called freebies included.
as for pictures getting grainy at ISO 800, I think with current gen cameras, i don't think noise at ISO 800 are too bad/obvious. Of course, is best we can take a look at picture taken with ISO 800 using D3100.