Macbook Pro 2.16Ghz Intel core 2 duo. Has 2 GB of RAM. With 120GB HD. The MBP was dropped and apparently only the screen is broken and the guy is selling for $400. He said he can test it with external screen. Good buy? If not, what's the reasonable price? Thinking of getting this as desktop...... What should I be aware of for a dropped MBP? What other common defective is known for dropped laptop?