^^ Forcefed pretty much got it right there.
When bulking (current) I'm hitting 400g/day. Body weight of 237lbs.
When cutting I drop to 300g/day, and usually as low as 250g/day when I start stalling.
It's also good to note that 250g of real food protein is more beneficial than a split of whey + food. try to get all protein with food unless It's a post workout shake. Whey is needed there.
EDIT: I'm doing more of a powerbuilder type routine that's also why the added protein. If training for straight power, protein can be lowered a bit.
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents... some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new Dark Age."
-H.P. Lovecraft