What to lookout for? First, is how deep is your pocket. Ha ha.. :bsmilie:
Just like what (iboey) has say. Get a empty film pack and test everything.
But, if this is your first time getting a polaroid i guess you wouldn't have a empty film pack. :sweat:
Not just the flash! Flash is just a function that helping you to take a better pictures.
The most importent for all is the shutter life! Without it! The cameras is useless!
Almost all 600 series polaroids come with a fix lens and fix focus function.
So, nothing much to look out for. Film wise? SX-70 or 600 film camera.
That is not a big problem too. Just get a ND filter everything is good.