Putting in RAM with a higher speed I wondering if I put my 1600Mhz 8Gig (4gigx2) modules in a Macbook Pro 17" 620m (2010 model) if the speeds would be automatically reduced to 1066Mhz? I'm just asking because I don't want to damage the computer. I've read that this will happen, but I just want to ask around before hand :).
The frequency rating on RAM is analogous to the top speed of a car, if it's max speed is (for example) 250 km/h, it can drive up to 250 km/h, but it won't break if u drive at 25 km/h.

Same for RAM. As long as it's the same DDR3 Standard, it will run, regardless of how high the max clock speed is.