I have the Rev A 17" MBP from April 2006 w/ 2.16GHz, 2GB RAM, 120GB HDD. I'm thinking of selling it as I see them going for upwards of $1000 on eBay now, and using that to get a new MacBook 2.2GHz w/ 4GB RAM. The only difference between the MBP and MB these days seems to be the video horsepower, which I really don't need in a laptop. This seems like a trade up to me minus the video power that I don't think I need. The most I'd want to do is capture screencasts w/ something like Screenflow. These apps seem to take a lot of horsepower, but does it take a good GPU? Does this seem like a good fit for me?