Hey all, I have a 2.2 ghz SR MBP with a 120gb 5400 rpm hard drive. I'm looking to upgrade my hard drive to something bigger and faster. Specifically, I'm looking at the Hitachi 200gb 7200 rpm drive. I've installed many a hard drive in my Macbook Pro's, so that's not an issue. My question is regarding a speed difference. 1. How much faster is the 200gb 7200 rpm than the stock drive? (I've seen some barefeats tests that have shown it's quite a bit faster, I'm just wondering real-world speed, and what specific write stuff will it be that much faster in?) 2. If I did upgrade to the 200gb 7200 rpm, how much more hot or noisy is it than the stock drive? 3. How much worse is the battery life with one of these more powerful drives? Thanks for the advice!