Hey guys, I have a 12" ibook 500mhz 256ram dual usb model with an airport card that I have a buyer for, selling it for 375. I can do this and then buy a 15" tiBook 800mhz 1g ram wth airport for 475. My ibook has been very reliable lately, and am wondering if it is worth the 100 to upgrade to the tibooks, I am not sure of their reliability. Any advice would be appreciated as I will do this soon if at all. Thanks.