I'm considering a new 867 tibook(just can't afford the 1ghz) to replace my 500hz tibook. Just wondering if people who have bought the 867's are happy with them. We hear from the 1ghz owners all the time but i haven't come across to many 867 owners. Are there any major issues. How's the heat issue compared to earlier models. Fan noise???? Airport reception????screen brightness?? And what was this rumor i heard about the 867 tibooks benchmarking slower than the 667's???? Thanks guys.