Figured I'd ask here and see what peoples' experiences with the notebooks are. I currently own a 13" MacBook from 2006, the first line of them, if I'm not mistaken. After having it fixed a few times (mostly for the cracking, which has happened once more, but also for dead fans, an expanding battery, and other things), it's come to the point where the machine is four years old and doesn't do as much as I'd like it to be able to do, or at least as well as I'd like it to. Just a bit sluggish these days. To keep it to the point, I own a slightly old Windows desktop given to me by my friend when he replaced his. It runs most games I want to run sufficiently enough (League of Legends, Starcraft II -- primarily strategy games), and I imagine that, at the very least, any of the MBP systems could run either of those, more so the latter on lower/medium settings, but that's fine. I'd just like to know if the power difference between the 2006 MacBook and the 2010 MacBook Pro (13") is roughly similar or if there's some substantial difference. I know they still use Core 2 chips, which would be a little better, but processing power only goes so far and I don't do any sort of graphic/photo editing. The only thing the higher resolution of the 15" MBP would do for me is allow for more screen real estate, which is nice for games (but in the worst case scenario, I could still use an external monitor from time to time if I really wanted to). I might do some audio editing, but even that's an if. It'd be for the more standard things, but having options is always nice. My concern is if the upgrade is really worth the price, or if I should put out a bit more (well, more than just a bit) for the 15". If there's not that much power difference, or if the 13" has more power to it than I've been led to believe, that'd be good to know. I really do like the aluminum design and just strikes me as a more clean, efficient machine, so I'd like to upgrade soon to something new, regardless. Thanks in advance for any input.