there's a place with really tasty pancakes.
its at the chong nonsi BTS station.
when u step out of the gantry, walk towards the direction of the
next station.
on the left, take the stairs down.
on ground, the building on the left should have mcdonalds.
walk up a little bit and u'll see a little restaurant that's next
to the mcdonalds.
can't remember the name though.
for buffet, the only place i makan was at baiyoke sky, the one
skeujin mentioned. dim sum, i think u can try Yaowarat aka
Chinatown.
MRT station Hua Lamphong. but u'll need to walk a little to get to
the main street.