I've been thinking about "upgrading" to an SSD HD in my late 2009 Macbook Pro (15", 2.53Ghz C2D, 4GB memory). Currently, I have the stock 320GB 7200RPM drive that came with the computer, and it works just fine, although I wouldn't mind a bit more performance. I don't want to upgrade to an SSD just because it's kind of the cool thing to do right now, I want to actually get some performance gains, better battery life, etc. I do some pretty intense photo editing in Photoshop at times, some web design and development, and then just basic internet surfing, checking mail, etc. I have a 1TB external drive, so the lack of space in an SSD isn't an issue to me since I could back up my RAW photos to that. I eventually burn them to a DVD for storage anyway and delete them off the HD. Other than that my HD is pretty empty. So I ask all of my fellow MacRumors Forum members; have you switched to an SSD in your MacBook Pro and are you happy with the outcome? What model SSD did you choose? What do you primarily use your computer for? If you haven't switched, why not?