That calaculator says 153 lean body weight and 93g of Protein. I eat anywhere from just over 100g to just under 300g of Protein a day. I've even gone over 300g a few times...and despite what Anti-Protein folks say (as proven by me still being alive) 300g of Protein in not lethal.

As for excess...I don't think you have to worry about that...As Dr. Atkins said, Protein can be broken down into Glucose. But, I also read the Cordain's Paleo Diet and it states that your body exerts more energy breaking down Protein than it gets from it. It does seem to be true...When I eat lots of lean meats I lose more than when I eat fatty meats, even at the same caloric intake. Right now my numbers are:

2151 Calories
106g Fat (46%)
44g Sat. Fat (19%)
12g Poly Fat
36g Mono Fat
15g Carbs (2%)
3g Fiber
22g Protein (51%)

2222 Calories
131g Fat (55%)
52g Sat. Fat (22%)
8g Poly Fat
54g Mono Fat
14g Carbs (2%)
3g Fiber
232g Protein (43%)