The appliances seem to vary by builder. Our builder gave us an appliance allowance. It was a joke - $1200 for appliances, I'm not sure you could manage to buy a microwave hood, fridge, dishwasher and stove for that little, but given the price of the house (not cheap) it was seriously laughable, but we negotiated him up to $2000 and still spent a bunch of our own money.
Things that cost us with our new house:
the appliances
shades (even just roller shades for the bedrooms cost $200, the bathroom has a paper shade and the rest of the house nothing right now, 1 year later)
paint - because we got sick of off-white very quickly
area rugs
CFL bulbs - to replace all the incandescents the builder put in
Locking Doorknobs - builder only put locking ones on the bathrooms, not on the bedrooms and we wanted them for closets and things to restrict kids access.
Landscaping - the builder put lawn in and a minimum of scrubs, but after trying to maintain it this way we've realized we really need to create mulch borders to cut down on the continuous weedwhacking and make mowing easier.
Mirrors - The builder doesn't include bathroom mirrors, though by mistake they never billed us for the 4 they had a glass place put in for us. I wish I had just had them put the other one in as it still doesn't have a mirror a year later.
Toilet Paper holders, towel racks, etc - not included by the builder, we still don't have them.
